diff --git a/package.json b/package.json
index 93e44429500f..dd721059eb8b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "taro",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "开放式跨端跨框架开发解决方案",
   "homepage": "https://github.com/NervJS/taro#readme",
   "author": "O2Team",
diff --git a/packages/babel-plugin-transform-react-jsx-to-rn-stylesheet/package.json b/packages/babel-plugin-transform-react-jsx-to-rn-stylesheet/package.json
index 43de99556707..a8e9ecf8a58e 100644
--- a/packages/babel-plugin-transform-react-jsx-to-rn-stylesheet/package.json
+++ b/packages/babel-plugin-transform-react-jsx-to-rn-stylesheet/package.json
@@ -1,6 +1,6 @@
 {
   "name": "babel-plugin-transform-react-jsx-to-rn-stylesheet",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Transform stylesheet selector to style in JSX Elements.",
   "license": "MIT",
   "main": "dist/index.js",
diff --git a/packages/babel-plugin-transform-taroapi/package.json b/packages/babel-plugin-transform-taroapi/package.json
index 7de7d5b9596e..266c8e12dae6 100644
--- a/packages/babel-plugin-transform-taroapi/package.json
+++ b/packages/babel-plugin-transform-taroapi/package.json
@@ -1,6 +1,6 @@
 {
   "name": "babel-plugin-transform-taroapi",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "main": "dist/index.js",
   "scripts": {
     "build": "tsc",
diff --git a/packages/babel-preset-taro/package.json b/packages/babel-preset-taro/package.json
index 70a3ece15965..3beb4aafda06 100644
--- a/packages/babel-preset-taro/package.json
+++ b/packages/babel-preset-taro/package.json
@@ -1,6 +1,6 @@
 {
   "name": "babel-preset-taro",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro babel preset",
   "author": "yuche <i@yuche.me>",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/babel-preset-taro#readme",
diff --git a/packages/create-app/package.json b/packages/create-app/package.json
index 28453c370e95..2fdb19bbd2bb 100644
--- a/packages/create-app/package.json
+++ b/packages/create-app/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/create-app",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "create taro app with one command",
   "author": "VincentW <Vincent.Mr.W@gmail.com>",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/create-app#readme",
diff --git a/packages/css-to-react-native/package.json b/packages/css-to-react-native/package.json
index b5b6235dc749..6fd4cf69b64f 100644
--- a/packages/css-to-react-native/package.json
+++ b/packages/css-to-react-native/package.json
@@ -1,7 +1,7 @@
 {
   "name": "taro-css-to-react-native",
   "description": "Convert CSS text to a React Native stylesheet object",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "main": "dist/index.js",
   "license": "MIT",
   "files": [
diff --git a/packages/eslint-config-taro/package.json b/packages/eslint-config-taro/package.json
index d386ac005697..10740a05b273 100644
--- a/packages/eslint-config-taro/package.json
+++ b/packages/eslint-config-taro/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eslint-config-taro",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro specific linting rules for ESLint",
   "main": "index.js",
   "files": [
diff --git a/packages/postcss-html-transform/package.json b/packages/postcss-html-transform/package.json
index 8d93cf05b460..b7484aadfa5e 100644
--- a/packages/postcss-html-transform/package.json
+++ b/packages/postcss-html-transform/package.json
@@ -1,6 +1,6 @@
 {
   "name": "postcss-html-transform",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "transform html tag name selector",
   "main": "index.js",
   "author": "drchan",
diff --git a/packages/postcss-plugin-constparse/package.json b/packages/postcss-plugin-constparse/package.json
index ca2cb8c78606..082de1a49ede 100644
--- a/packages/postcss-plugin-constparse/package.json
+++ b/packages/postcss-plugin-constparse/package.json
@@ -1,6 +1,6 @@
 {
   "name": "postcss-plugin-constparse",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "parse constants defined in config",
   "main": "index.js",
   "author": "Simba",
diff --git a/packages/postcss-pxtransform/package.json b/packages/postcss-pxtransform/package.json
index 867a0ecc22f6..273deb48d395 100644
--- a/packages/postcss-pxtransform/package.json
+++ b/packages/postcss-pxtransform/package.json
@@ -1,6 +1,6 @@
 {
   "name": "postcss-pxtransform",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "PostCSS plugin px 转小程序 rpx及h5 rem 单位",
   "main": "index.js",
   "keywords": [
diff --git a/packages/shared/package.json b/packages/shared/package.json
index c42213176989..4aa77ee80a97 100644
--- a/packages/shared/package.json
+++ b/packages/shared/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/shared",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro utils internal use.",
   "author": "yuche <i@yuche.me>",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/shared#readme",
diff --git a/packages/stylelint-config-taro-rn/package.json b/packages/stylelint-config-taro-rn/package.json
index 3ba1428cb80c..1150f409c006 100644
--- a/packages/stylelint-config-taro-rn/package.json
+++ b/packages/stylelint-config-taro-rn/package.json
@@ -1,6 +1,6 @@
 {
   "name": "stylelint-config-taro-rn",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Shareable stylelint config for React Native CSS modules",
   "main": "index.js",
   "files": [
diff --git a/packages/stylelint-taro-rn/package.json b/packages/stylelint-taro-rn/package.json
index c0ae677ad77d..6c8c6c6c4fdd 100644
--- a/packages/stylelint-taro-rn/package.json
+++ b/packages/stylelint-taro-rn/package.json
@@ -1,7 +1,7 @@
 {
   "name": "stylelint-taro-rn",
   "description": "A collection of React Native specific rules for stylelint",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "main": "dist/index.js",
   "files": [
     "dist",
diff --git a/packages/taro-alipay/package.json b/packages/taro-alipay/package.json
index 69e40f1a1e1b..9821b189b0a9 100644
--- a/packages/taro-alipay/package.json
+++ b/packages/taro-alipay/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-platform-alipay",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "支付宝小程序平台插件",
   "author": "Chen-jj",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/taro-alipay#readme",
diff --git a/packages/taro-api/package.json b/packages/taro-api/package.json
index 9aab5499e163..d932bceafe69 100644
--- a/packages/taro-api/package.json
+++ b/packages/taro-api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/api",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro common API",
   "author": "yuche <i@yuche.me>",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/api#readme",
diff --git a/packages/taro-cli-convertor/package.json b/packages/taro-cli-convertor/package.json
index fdc87f100457..d3104b3829d0 100644
--- a/packages/taro-cli-convertor/package.json
+++ b/packages/taro-cli-convertor/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/cli-convertor",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "cli tool for taro-convert",
   "main": "index.js",
   "scripts": {
diff --git a/packages/taro-cli/package.json b/packages/taro-cli/package.json
index 6fc5b1edfc76..70e5b742b552 100644
--- a/packages/taro-cli/package.json
+++ b/packages/taro-cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/cli",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "cli tool for taro",
   "main": "index.js",
   "types": "dist/index.d.ts",
diff --git a/packages/taro-cli/src/__tests__/build-config.spec.ts b/packages/taro-cli/src/__tests__/build-config.spec.ts
new file mode 100644
index 000000000000..4cdeaebf49e7
--- /dev/null
+++ b/packages/taro-cli/src/__tests__/build-config.spec.ts
@@ -0,0 +1,98 @@
+import { emptyDirectory } from '@tarojs/helper'
+import * as path from 'path'
+
+import { run } from './utils'
+
+const runBuild = run('build', [
+  'commands/build',
+  require.resolve('@tarojs/plugin-platform-weapp'),
+  require.resolve('@tarojs/plugin-platform-h5')
+])
+
+jest.mock('@tarojs/helper', () => {
+  const helper = jest.requireActual('@tarojs/helper')
+  const fs = helper.fs
+  return {
+    __esModule: true,
+    ...helper,
+    emptyDirectory: jest.fn(),
+    fs: {
+      ...fs
+    },
+  }
+})
+
+const APP_PATH = path.join(__dirname, 'fixtures/default')
+const OUTPUT_PATH = path.join(__dirname, 'fixtures/default/dist')
+
+describe('构建配置测试', () => {
+  const emptyDirectoryMocked = emptyDirectory as jest.Mock<any>
+
+  beforeEach(() => {
+    emptyDirectoryMocked.mockReset()
+    process.argv = []
+  })
+
+  afterEach(() => {
+    process.argv = []
+    emptyDirectoryMocked.mockReset()
+  })
+
+  describe('小程序', () => {
+    it(`项目 output.clean = clean: { keep: ['project.config.json'] } ==> 清空dist文件夹但保留指定文件`, async () => {
+      const exitSpy = jest.spyOn(process, 'exit') as jest.SpyInstance<void, any>
+      const logSpy = jest.spyOn(console, 'log')
+      const errorSpy = jest.spyOn(console, 'error')
+      logSpy.mockImplementation(() => {})
+      errorSpy.mockImplementation(() => {})
+      exitSpy.mockImplementation(() => {
+        throw new Error()
+      })
+
+      try {
+        await runBuild(APP_PATH, {
+          options: {
+            type: 'weapp',
+            platform: 'weapp'
+          }
+        })
+      } catch (error) {
+        // no handler
+      }
+      expect(emptyDirectoryMocked).toBeCalledWith(OUTPUT_PATH, { excludes: ['project.config.json'] })
+
+      exitSpy.mockRestore()
+      logSpy.mockRestore()
+      errorSpy.mockRestore()
+    })
+  })
+
+  describe('h5', () => {
+    it('output.clean = false ==> 保留dist文件夹', async () => {
+      const exitSpy = jest.spyOn(process, 'exit') as jest.SpyInstance<void, any>
+      const logSpy = jest.spyOn(console, 'log')
+      const errorSpy = jest.spyOn(console, 'error')
+      logSpy.mockImplementation(() => {})
+      errorSpy.mockImplementation(() => {})
+      exitSpy.mockImplementation(() => {
+        throw new Error()
+      })
+
+      try {
+        await runBuild(APP_PATH, {
+          options: {
+            type: 'h5',
+            platform: 'h5'
+          }
+        })
+      } catch (error) {
+        // no handler
+      }
+      expect(emptyDirectoryMocked).toBeCalledTimes(0)
+
+      exitSpy.mockRestore()
+      logSpy.mockRestore()
+      errorSpy.mockRestore()
+    })
+  })
+})
diff --git a/packages/taro-cli/src/__tests__/dotenv-parse.spec.ts b/packages/taro-cli/src/__tests__/dotenv-parse.spec.ts
new file mode 100644
index 000000000000..927a22562675
--- /dev/null
+++ b/packages/taro-cli/src/__tests__/dotenv-parse.spec.ts
@@ -0,0 +1,105 @@
+import { Kernel } from '@tarojs/service'
+import * as path from 'path'
+
+import CLI from '../cli'
+import { dotenvParse } from '../util/index'
+
+jest.mock('@tarojs/service')
+const MockedKernel = Kernel as unknown as jest.Mock<Kernel>
+const APP_PATH = path.join(__dirname, 'fixtures/default')
+
+function setProcessArgv (cmd: string) {
+  // @ts-ignore
+  process.argv = [null, ...cmd.split(' ')]
+}
+
+describe('inspect', () => {
+  let cli: CLI
+
+  beforeAll(() => {
+    cli = new CLI(APP_PATH)
+  })
+
+  beforeEach(() => {
+    MockedKernel.mockClear()
+    process.argv = []
+    delete process.env.NODE_ENV
+    delete process.env.TARO_ENV
+    delete process.env.TARO_APP_TEST
+    delete process.env.TARO_APP_ID
+    delete process.env.JD_APP_TEST
+    delete process.env.TARO_APP_DEFAULT
+    delete process.env.TARO_APP_FOO
+  })
+
+  afterEach(() => {
+    MockedKernel.mockClear()
+    process.argv = []
+    delete process.env.NODE_ENV
+    delete process.env.TARO_ENV
+    delete process.env.TARO_APP_TEST
+    delete process.env.TARO_APP_ID
+    delete process.env.JD_APP_TEST
+    delete process.env.TARO_APP_DEFAULT
+    delete process.env.TARO_APP_FOO
+  })
+
+  describe('cli mode env', () => {
+
+    it('dotenvParse .env .env.dev should success', async () => {
+      expect(process.env.TARO_test).toBeUndefined()
+      dotenvParse(path.resolve(__dirname, 'env'), 'TARO_', 'dev')
+      expect(process.env.TARO_test).toBe('123')
+      expect(process.env._TARO_test).toBeUndefined()
+    })
+
+    it('--watch true => 默认加载 .env.development', async () => {
+      setProcessArgv('taro build --watch --type weapp')
+      await cli.run()
+      expect(process.env.TARO_APP_TEST).toEqual('env-development')
+      expect(process.env.TARO_APP_DEFAULT).toEqual('default')
+    })
+
+    it('--watch false => 默认加载 .env.production', async () => {
+      setProcessArgv('taro build --type weapp')
+      await cli.run()
+      expect(process.env.TARO_APP_TEST).toEqual('env-production')
+      expect(process.env.TARO_APP_DEFAULT).toEqual('default')
+    })
+
+    it('指定加载 .env.pre', async () => {
+      setProcessArgv('taro build --type weapp --mode pre')
+      await cli.run()
+      expect(process.env.TARO_APP_TEST).toEqual('env-pre')
+      expect(process.env.TARO_APP_DEFAULT).toEqual('default')
+    })
+
+    it('env.local 比 .env 优先级更高', async () => {
+      setProcessArgv('taro build --type weapp --mode find404')
+      await cli.run()
+      expect(process.env.TARO_APP_TEST).toEqual('env-local')
+      expect(process.env.TARO_APP_DEFAULT).toEqual('default')
+    })
+
+    it('env.uat.local 比 .env.uat 优先级更高', async () => {
+      setProcessArgv('taro build --type weapp --mode uat')
+      await cli.run()
+      expect(process.env.TARO_APP_TEST).toEqual('env-uat-local')
+      expect(process.env.TARO_APP_DEFAULT).toEqual('default')
+    })
+
+    it('自定义前缀: JD_APP_', async () => {
+      setProcessArgv('taro build --type weapp --mode uat --env-prefix JD_APP_')
+      await cli.run()
+      expect(process.env.JD_APP_TEST).toEqual('env-uat')
+      expect(process.env.TARO_APP_TEST).toEqual(undefined)
+      expect(process.env.TARO_APP_ID).toEqual('特殊变量appid')
+    })
+
+    it('环境变量可以相互引用', async () => {
+      setProcessArgv('taro build --type weapp --mode pre')
+      await cli.run()
+      expect(process.env.TARO_APP_FOO).toEqual('env-pre-foo')
+    })
+  })
+})
diff --git a/packages/taro-cli/src/__tests__/dotenvParse.spec.ts b/packages/taro-cli/src/__tests__/dotenvParse.spec.ts
deleted file mode 100644
index 7d9ecd8734c6..000000000000
--- a/packages/taro-cli/src/__tests__/dotenvParse.spec.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import { resolve } from 'path'
-
-import { dotenvParse } from '../util/index'
-
-
-describe('dotenvParse', () => {
-  it('dotenvParse .env .env.dev should success', async () => {
-    expect(process.env.TARO_test).toBeUndefined()
-    dotenvParse(resolve(__dirname, 'env'), 'TARO_', 'dev')
-    expect(process.env.TARO_test).toBe('123')
-    expect(process.env._TARO_test).toBeUndefined()
-  })
-})
diff --git a/packages/taro-cli/src/__tests__/fixtures/default/.env b/packages/taro-cli/src/__tests__/fixtures/default/.env
new file mode 100644
index 000000000000..76bb7901e115
--- /dev/null
+++ b/packages/taro-cli/src/__tests__/fixtures/default/.env
@@ -0,0 +1,3 @@
+TARO_APP_TEST=env
+
+TARO_APP_DEFAULT=default
\ No newline at end of file
diff --git a/packages/taro-cli/src/__tests__/fixtures/default/.env.development b/packages/taro-cli/src/__tests__/fixtures/default/.env.development
new file mode 100644
index 000000000000..36bcd02cf475
--- /dev/null
+++ b/packages/taro-cli/src/__tests__/fixtures/default/.env.development
@@ -0,0 +1 @@
+TARO_APP_TEST=env-development
\ No newline at end of file
diff --git a/packages/taro-cli/src/__tests__/fixtures/default/.env.local b/packages/taro-cli/src/__tests__/fixtures/default/.env.local
new file mode 100644
index 000000000000..2acb5bd7b177
--- /dev/null
+++ b/packages/taro-cli/src/__tests__/fixtures/default/.env.local
@@ -0,0 +1 @@
+TARO_APP_TEST=env-local
\ No newline at end of file
diff --git a/packages/taro-cli/src/__tests__/fixtures/default/.env.pre b/packages/taro-cli/src/__tests__/fixtures/default/.env.pre
new file mode 100644
index 000000000000..ec139f2c5960
--- /dev/null
+++ b/packages/taro-cli/src/__tests__/fixtures/default/.env.pre
@@ -0,0 +1,3 @@
+TARO_APP_TEST=env-pre
+
+TARO_APP_FOO=${TARO_APP_TEST}-foo
\ No newline at end of file
diff --git a/packages/taro-cli/src/__tests__/fixtures/default/.env.production b/packages/taro-cli/src/__tests__/fixtures/default/.env.production
new file mode 100644
index 000000000000..499f0896e082
--- /dev/null
+++ b/packages/taro-cli/src/__tests__/fixtures/default/.env.production
@@ -0,0 +1 @@
+TARO_APP_TEST=env-production
\ No newline at end of file
diff --git a/packages/taro-cli/src/__tests__/fixtures/default/.env.uat b/packages/taro-cli/src/__tests__/fixtures/default/.env.uat
new file mode 100644
index 000000000000..3ff2c5f45108
--- /dev/null
+++ b/packages/taro-cli/src/__tests__/fixtures/default/.env.uat
@@ -0,0 +1,5 @@
+TARO_APP_TEST=env-uat
+
+JD_APP_TEST=env-uat
+
+TARO_APP_ID=特殊变量appid
\ No newline at end of file
diff --git a/packages/taro-cli/src/__tests__/fixtures/default/.env.uat.local b/packages/taro-cli/src/__tests__/fixtures/default/.env.uat.local
new file mode 100644
index 000000000000..e5819429e8d4
--- /dev/null
+++ b/packages/taro-cli/src/__tests__/fixtures/default/.env.uat.local
@@ -0,0 +1 @@
+TARO_APP_TEST=env-uat-local
\ No newline at end of file
diff --git a/packages/taro-cli/src/__tests__/fixtures/default/config/index.js b/packages/taro-cli/src/__tests__/fixtures/default/config/index.js
index 7c0c9a7ad688..ea835b8a9adf 100644
--- a/packages/taro-cli/src/__tests__/fixtures/default/config/index.js
+++ b/packages/taro-cli/src/__tests__/fixtures/default/config/index.js
@@ -20,6 +20,11 @@ const config = {
   },
   framework: 'react',
   mini: {
+    output: {
+      clean: {
+        keep: ['project.config.json']
+      }
+    },
     postcss: {
       pxtransform: {
         enable: true,
@@ -43,6 +48,9 @@ const config = {
     }
   },
   h5: {
+    output: {
+      clean: false
+    },
     publicPath: '/',
     staticDirectory: 'static',
     postcss: {
diff --git a/packages/taro-cli/src/create/fetchTemplate.ts b/packages/taro-cli/src/create/fetchTemplate.ts
index 7de115660192..f458d0b3bc9c 100644
--- a/packages/taro-cli/src/create/fetchTemplate.ts
+++ b/packages/taro-cli/src/create/fetchTemplate.ts
@@ -20,6 +20,7 @@ export default function fetchTemplate (templateSource: string, templateRootPath:
   const type = getTemplateSourceType(templateSource)
   const tempPath = path.join(templateRootPath, TEMP_DOWNLOAD_FOLDER)
   let name: string
+  let isFromUrl = false
 
   // eslint-disable-next-line no-async-promise-executor
   return new Promise<void>(async (resolve) => {
@@ -44,24 +45,18 @@ export default function fetchTemplate (templateSource: string, templateRootPath:
         resolve()
       })
     } else if (type === 'url') {
-      const zipPath = path.join(tempPath, 'temp.zip')
+      // url 模板源，因为不知道来源名称，临时取名方便后续开发者从列表中选择
+      name = 'from-remote-url'
+      isFromUrl = true
+      const zipPath = path.join(tempPath, name + '.zip')
       request
         .get(templateSource)
         .pipe(fs.createWriteStream(zipPath))
         .on('close', () => {
           // unzip
           const zip = new AdmZip(zipPath)
-          zip.extractAllTo(tempPath, true)
-          const files = readDirWithFileTypes(tempPath).filter(
-            file => !file.name.startsWith('.') && file.isDirectory && file.name !== '__MACOSX'
-          )
-          if (files.length !== 1) {
-            spinner.color = 'red'
-            spinner.fail(chalk.red(`拉取远程模板仓库失败！\n${new Error('远程模板源组织格式错误')}`))
-            return resolve()
-          }
-
-          name = files[0].name
+          zip.extractAllTo(path.join(tempPath, name), true)
+
           spinner.color = 'green'
           spinner.succeed(`${chalk.grey('拉取远程模板仓库成功！')}`)
           resolve()
@@ -79,7 +74,10 @@ export default function fetchTemplate (templateSource: string, templateRootPath:
     // 下载失败，只显示默认模板
     if (!fs.existsSync(templateFolder)) return Promise.resolve([])
 
-    const isTemplateGroup = !fs.existsSync(path.join(templateFolder, 'package.json'))
+    const isTemplateGroup = !(
+      fs.existsSync(path.join(templateFolder, 'package.json')) ||
+      fs.existsSync(path.join(templateFolder, 'package.json.tmpl'))
+    )
 
     if (isTemplateGroup) {
       // 模板组
@@ -114,7 +112,7 @@ export default function fetchTemplate (templateSource: string, templateRootPath:
       await fs.move(templateFolder, path.join(templateRootPath, name), { overwrite: true })
       await fs.remove(tempPath)
 
-      let res: ITemplates = { name }
+      let res: ITemplates = { name, desc: isFromUrl ? templateSource : '' }
       const creatorFile = path.join(templateRootPath, name, TEMPLATE_CREATOR)
 
       if (fs.existsSync(creatorFile)) {
@@ -123,7 +121,7 @@ export default function fetchTemplate (templateSource: string, templateRootPath:
         res = {
           name,
           platforms,
-          desc
+          desc: desc || templateSource
         }
       }
 
diff --git a/packages/taro-cli/src/presets/platforms/plugin.ts b/packages/taro-cli/src/presets/platforms/plugin.ts
index df0b07337965..baba4eb4a327 100644
--- a/packages/taro-cli/src/presets/platforms/plugin.ts
+++ b/packages/taro-cli/src/presets/platforms/plugin.ts
@@ -35,8 +35,7 @@ export default (ctx: IPluginContext) => {
               isBuildPlugin: true,
               isWatch,
               outputRoot: `${config.outputRoot}`,
-              platform,
-              needClearOutput: false
+              platform
             },
             options: Object.assign({}, options, {
               platform
@@ -52,8 +51,7 @@ export default (ctx: IPluginContext) => {
               isBuildPlugin: false,
               isWatch,
               outputRoot: `${config.outputRoot}/miniprogram`,
-              platform,
-              needClearOutput: false
+              platform
             },
             options: Object.assign({}, options, {
               platform
diff --git a/packages/taro-components-advanced/package.json b/packages/taro-components-advanced/package.json
index 14284755e0cf..353eecfa645a 100644
--- a/packages/taro-components-advanced/package.json
+++ b/packages/taro-components-advanced/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/components-advanced",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/packages/taro-components-library-react/package.json b/packages/taro-components-library-react/package.json
index 3e84dc1b6de4..a7de3b4d45e5 100644
--- a/packages/taro-components-library-react/package.json
+++ b/packages/taro-components-library-react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/components-library-react",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro 组件库 React 版本库",
   "private": true,
   "main": "index.js",
diff --git a/packages/taro-components-library-vue2/package.json b/packages/taro-components-library-vue2/package.json
index c5c80657e6f4..6744500edd8b 100644
--- a/packages/taro-components-library-vue2/package.json
+++ b/packages/taro-components-library-vue2/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/components-library-vue2",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro 组件库 Vue2 版本库",
   "private": true,
   "main": "index.js",
diff --git a/packages/taro-components-library-vue3/package.json b/packages/taro-components-library-vue3/package.json
index e181a3952616..048ad7914eeb 100644
--- a/packages/taro-components-library-vue3/package.json
+++ b/packages/taro-components-library-vue3/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/components-library-vue3",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro 组件库 Vue3 版本库",
   "private": true,
   "main": "index.js",
diff --git a/packages/taro-components-react/package.json b/packages/taro-components-react/package.json
index 913c2babb9bb..f615caa0e44e 100644
--- a/packages/taro-components-react/package.json
+++ b/packages/taro-components-react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/components-react",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "",
   "main:h5": "src/index.js",
   "main": "dist/index.js",
diff --git a/packages/taro-components-rn/package.json b/packages/taro-components-rn/package.json
index 894a84fe7167..97d4f55fca8d 100644
--- a/packages/taro-components-rn/package.json
+++ b/packages/taro-components-rn/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/components-rn",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "多端解决方案基础组件（RN）",
   "main": "./dist/index.js",
   "scripts": {
diff --git a/packages/taro-components/package.json b/packages/taro-components/package.json
index 247507bd3705..b95eba686171 100644
--- a/packages/taro-components/package.json
+++ b/packages/taro-components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/components",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro 组件库",
   "browser": "dist/index.js",
   "main:h5": "dist/index.js",
diff --git a/packages/taro-extend/package.json b/packages/taro-extend/package.json
index bec879a962b1..bc85b96c3032 100644
--- a/packages/taro-extend/package.json
+++ b/packages/taro-extend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/extend",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro extend functionality",
   "author": "yuche <i@yuche.me>",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/taro-extend#readme",
diff --git a/packages/taro-h5/package.json b/packages/taro-h5/package.json
index b8b945bc5d92..e265261a9ce5 100644
--- a/packages/taro-h5/package.json
+++ b/packages/taro-h5/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/taro-h5",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro h5 framework",
   "browser": "dist/index.esm.js",
   "main:h5": "dist/index.js",
diff --git a/packages/taro-helper/package.json b/packages/taro-helper/package.json
index 4eddc12d5b6b..2e0488cc5bc6 100644
--- a/packages/taro-helper/package.json
+++ b/packages/taro-helper/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/helper",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro Helper",
   "main": "index.js",
   "types": "dist/index.d.ts",
diff --git a/packages/taro-helper/src/utils.ts b/packages/taro-helper/src/utils.ts
index 3bac016cbb28..5c39a2e5a22f 100644
--- a/packages/taro-helper/src/utils.ts
+++ b/packages/taro-helper/src/utils.ts
@@ -283,7 +283,7 @@ export function cssImports (content: string): string[] {
 
 /*eslint-disable*/
 const retries = (process.platform === 'win32') ? 100 : 1
-export function emptyDirectory (dirPath: string, opts: { excludes: string[] } = { excludes: [] }) {
+export function emptyDirectory (dirPath: string, opts: { excludes: Array<string | RegExp> | string | RegExp } = { excludes: [] }) {
   if (fs.existsSync(dirPath)) {
     fs.readdirSync(dirPath).forEach(file => {
       const curPath = path.join(dirPath, file)
@@ -292,7 +292,13 @@ export function emptyDirectory (dirPath: string, opts: { excludes: string[] } =
         let i = 0 // retry counter
         do {
           try {
-            if (!opts.excludes.length || !opts.excludes.some(item => curPath.indexOf(item) >= 0)) {
+            const excludes = Array.isArray(opts.excludes) ? opts.excludes : [opts.excludes]
+            const canRemove =
+              !excludes.length ||
+              !excludes.some((item) =>
+                typeof item === 'string' ? curPath.indexOf(item) >= 0 : item.test(curPath)
+              )
+            if (canRemove) {
               emptyDirectory(curPath)
               fs.rmdirSync(curPath)
             }
diff --git a/packages/taro-jd/package.json b/packages/taro-jd/package.json
index cff1c3df18fa..18bd0bc1f028 100644
--- a/packages/taro-jd/package.json
+++ b/packages/taro-jd/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-platform-jd",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "京东小程序平台插件",
   "author": "Chen-jj",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/taro-jd#readme",
diff --git a/packages/taro-loader/package.json b/packages/taro-loader/package.json
index a4cf7cc0b6b9..c16791dc7673 100644
--- a/packages/taro-loader/package.json
+++ b/packages/taro-loader/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/taro-loader",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro runner use webpack loader",
   "author": "yuche <i@yuche.me>",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/taro-loader#readme",
diff --git a/packages/taro-mini-runner/package.json b/packages/taro-mini-runner/package.json
index 198a6facbb51..f594040965a8 100644
--- a/packages/taro-mini-runner/package.json
+++ b/packages/taro-mini-runner/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/mini-runner",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Mini app runner for taro",
   "main": "index.js",
   "scripts": {
diff --git a/packages/taro-mini-runner/src/webpack/chain.ts b/packages/taro-mini-runner/src/webpack/chain.ts
index c654c65e158e..5e469eb2c3e0 100644
--- a/packages/taro-mini-runner/src/webpack/chain.ts
+++ b/packages/taro-mini-runner/src/webpack/chain.ts
@@ -60,6 +60,10 @@ interface IRule {
 }
 
 export const makeConfig = async (buildConfig: IBuildConfig) => {
+  // 过滤原因：webpack4 不支持 output.clean 选项， 且 packages/taro-service/src/platform-plugin-base/web.ts 中实现了 output.clean
+  if (buildConfig.output && 'clean' in buildConfig.output) {
+    delete buildConfig.output.clean
+  }
   const sassLoaderOption = await getSassLoaderOption(buildConfig)
   return {
     ...buildConfig,
diff --git a/packages/taro-platform-h5/package.json b/packages/taro-platform-h5/package.json
index f700487f576f..2faebd364164 100644
--- a/packages/taro-platform-h5/package.json
+++ b/packages/taro-platform-h5/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-platform-h5",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Web 端平台插件",
   "author": "ZakaryCode",
   "license": "MIT",
diff --git a/packages/taro-plugin-html/package.json b/packages/taro-plugin-html/package.json
index 57da2f9fa7d0..6416efbf3ea5 100644
--- a/packages/taro-plugin-html/package.json
+++ b/packages/taro-plugin-html/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-html",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro 小程序端支持使用 HTML 标签的插件",
   "main": "index.js",
   "scripts": {
diff --git a/packages/taro-plugin-http/package.json b/packages/taro-plugin-http/package.json
index 59899076b894..c8f837f860a9 100644
--- a/packages/taro-plugin-http/package.json
+++ b/packages/taro-plugin-http/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-http",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro 小程序端支持使用 web 请求 的插件",
   "main": "index.js",
   "scripts": {
diff --git a/packages/taro-plugin-inject/package.json b/packages/taro-plugin-inject/package.json
index 4a9a291382c6..3b49ef955588 100644
--- a/packages/taro-plugin-inject/package.json
+++ b/packages/taro-plugin-inject/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-inject",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro 小程序端平台中间层插件",
   "author": "luckyadam",
   "homepage": "https://github.com/nervjs/taro",
diff --git a/packages/taro-plugin-mini-ci/package.json b/packages/taro-plugin-mini-ci/package.json
index 21ac39cd7d5b..fb5c55e1c31d 100644
--- a/packages/taro-plugin-mini-ci/package.json
+++ b/packages/taro-plugin-mini-ci/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-mini-ci",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro 小程序端构建后支持CI（持续集成）的插件",
   "keywords": [
     "Taro",
diff --git a/packages/taro-plugin-react-devtools/package.json b/packages/taro-plugin-react-devtools/package.json
index 220533f771c8..bbcc4d245732 100644
--- a/packages/taro-plugin-react-devtools/package.json
+++ b/packages/taro-plugin-react-devtools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-react-devtools",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro 小程序端支持使用 React DevTools 的插件",
   "main": "index.js",
   "scripts": {
diff --git a/packages/taro-plugin-react/package.json b/packages/taro-plugin-react/package.json
index 46e00ce65db0..5b89bde9af7d 100644
--- a/packages/taro-plugin-react/package.json
+++ b/packages/taro-plugin-react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-framework-react",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "React/Preact/Nerv 框架插件",
   "author": "drchan",
   "homepage": "https://github.com/nervjs/taro",
diff --git a/packages/taro-plugin-vue-devtools/package.json b/packages/taro-plugin-vue-devtools/package.json
index 57d55ff1b78f..7d1f2b90b009 100644
--- a/packages/taro-plugin-vue-devtools/package.json
+++ b/packages/taro-plugin-vue-devtools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-vue-devtools",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro 小程序端支持使用 Vue DevTools 的插件",
   "main": "index.js",
   "scripts": {
diff --git a/packages/taro-plugin-vue2/package.json b/packages/taro-plugin-vue2/package.json
index 99f805d07d5e..68a53c232be7 100644
--- a/packages/taro-plugin-vue2/package.json
+++ b/packages/taro-plugin-vue2/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-framework-vue2",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Vue2 框架插件",
   "author": "drchan",
   "homepage": "https://github.com/nervjs/taro",
diff --git a/packages/taro-plugin-vue3/package.json b/packages/taro-plugin-vue3/package.json
index 5ac614583516..a80d5be0343e 100644
--- a/packages/taro-plugin-vue3/package.json
+++ b/packages/taro-plugin-vue3/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-framework-vue3",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Vue3 框架插件",
   "author": "drchan",
   "homepage": "https://github.com/nervjs/taro",
diff --git a/packages/taro-qq/package.json b/packages/taro-qq/package.json
index b775da1a7b54..0f1cf36c1a4a 100644
--- a/packages/taro-qq/package.json
+++ b/packages/taro-qq/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-platform-qq",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "QQ 小程序平台插件",
   "author": "Chen-jj",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/taro-qq#readme",
diff --git a/packages/taro-react/package.json b/packages/taro-react/package.json
index 6310fb63e7f2..41d750b3c672 100644
--- a/packages/taro-react/package.json
+++ b/packages/taro-react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/react",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "like react-dom, but for mini apps.",
   "author": "yuche <i@yuche.me>",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/taro-react#readme",
diff --git a/packages/taro-rn-runner/package.json b/packages/taro-rn-runner/package.json
index 35006fbafdaf..5aab35898820 100644
--- a/packages/taro-rn-runner/package.json
+++ b/packages/taro-rn-runner/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/rn-runner",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "ReactNative build tool for taro",
   "main": "index.js",
   "repository": {
diff --git a/packages/taro-rn-style-transformer/package.json b/packages/taro-rn-style-transformer/package.json
index 2b5fc198fd54..6d1172db2017 100644
--- a/packages/taro-rn-style-transformer/package.json
+++ b/packages/taro-rn-style-transformer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/rn-style-transformer",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "提供Taro RN 统一处理样式文件能力",
   "main": "dist/index.js",
   "scripts": {
diff --git a/packages/taro-rn-supporter/package.json b/packages/taro-rn-supporter/package.json
index 0073cdd15654..d1301e2fe964 100644
--- a/packages/taro-rn-supporter/package.json
+++ b/packages/taro-rn-supporter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/rn-supporter",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro rn supporter",
   "main": "dist/index.js",
   "scripts": {
diff --git a/packages/taro-rn-transformer/package.json b/packages/taro-rn-transformer/package.json
index cd6a4aa15dec..af73ad068359 100644
--- a/packages/taro-rn-transformer/package.json
+++ b/packages/taro-rn-transformer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/rn-transformer",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro RN 入口文件处理",
   "main": "dist/index.js",
   "types": "./src/types/index.d.ts",
diff --git a/packages/taro-rn/package.json b/packages/taro-rn/package.json
index 724a580c829d..d7ba85439ba2 100644
--- a/packages/taro-rn/package.json
+++ b/packages/taro-rn/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/taro-rn",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro RN framework",
   "main": "dist/index.js",
   "typings": "types/index.d.ts",
diff --git a/packages/taro-router-rn/package.json b/packages/taro-router-rn/package.json
index f67fea58a7a9..d01776a11402 100644
--- a/packages/taro-router-rn/package.json
+++ b/packages/taro-router-rn/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/router-rn",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro-router-rn",
   "main": "dist/index.js",
   "typings": "src/index.ts",
diff --git a/packages/taro-router/package.json b/packages/taro-router/package.json
index 0c536cdb0308..d5de58a94594 100644
--- a/packages/taro-router/package.json
+++ b/packages/taro-router/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/router",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro-router",
   "browser": "dist/index.esm.js",
   "main:h5": "dist/index.js",
diff --git a/packages/taro-runner-utils/package.json b/packages/taro-runner-utils/package.json
index de728336fe34..f53cb1e673e8 100644
--- a/packages/taro-runner-utils/package.json
+++ b/packages/taro-runner-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/runner-utils",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro runner utilities.",
   "main": "dist/index.js",
   "types": "types/index.d.ts",
diff --git a/packages/taro-runtime-rn/package.json b/packages/taro-runtime-rn/package.json
index e9dab0e0e922..8947777ad09e 100644
--- a/packages/taro-runtime-rn/package.json
+++ b/packages/taro-runtime-rn/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/runtime-rn",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "taro-runtime-rn",
   "main": "dist/index.js",
   "types": "./src/index.ts",
diff --git a/packages/taro-runtime-rn/src/page.ts b/packages/taro-runtime-rn/src/page.ts
index d29f2bd18c7c..ad3551be0413 100644
--- a/packages/taro-runtime-rn/src/page.ts
+++ b/packages/taro-runtime-rn/src/page.ts
@@ -441,7 +441,8 @@ export function createPageConfig (Page: any, pageConfig: PageConfig): any {
           scrollEventThrottle: 8,
           ...refresh,
           onScroll: (e) => this.onPageScroll(e),
-          onMomentumScrollEnd: (e) => this.onReachBottom(e)
+          onMomentumScrollEnd: (e) => this.onReachBottom(e),
+          nestedScrollEnabled: true,
         }, this.createPage())
       }
 
diff --git a/packages/taro-runtime/package.json b/packages/taro-runtime/package.json
index be735163567a..7f8ada4518e7 100644
--- a/packages/taro-runtime/package.json
+++ b/packages/taro-runtime/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/runtime",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "taro runtime for mini apps.",
   "main": "dist/runtime.esm.js",
   "module": "dist/runtime.esm.js",
diff --git a/packages/taro-service/package.json b/packages/taro-service/package.json
index b65aa3660dd6..9ca0a1f6ebe9 100644
--- a/packages/taro-service/package.json
+++ b/packages/taro-service/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/service",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro Service",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/taro-service/src/platform-plugin-base/mini.ts b/packages/taro-service/src/platform-plugin-base/mini.ts
index 69af104e920e..ef48e03e0852 100644
--- a/packages/taro-service/src/platform-plugin-base/mini.ts
+++ b/packages/taro-service/src/platform-plugin-base/mini.ts
@@ -1,5 +1,5 @@
 import { recursiveMerge } from '@tarojs/helper'
-import { PLATFORM_TYPE } from '@tarojs/shared'
+import { isObject, PLATFORM_TYPE } from '@tarojs/shared'
 
 import { getPkgVersion } from '../utils/package'
 import TaroPlatform from './platform'
@@ -35,9 +35,15 @@ export abstract class TaroPlatformBase<T extends TConfig = TConfig> extends Taro
   }
 
   private setupImpl () {
-    const { needClearOutput } = this.config
-    if (typeof needClearOutput === 'undefined' || !!needClearOutput) {
+    const { output } = this.config
+    // webpack5 原生支持 output.clean 选项，但是 webpack4 不支持， 为统一行为，这里做一下兼容
+    // （在 packages/taro-mini-runner/src/webpack/chain.ts 和 packages/taro-webpack-runner/src/utils/chain.ts 的 makeConfig 中对 clean 选项做了过滤）
+    // 仅 output.clean 为 false 时不清空输出目录
+    // eslint-disable-next-line eqeqeq
+    if (output == undefined || output.clean == undefined || output.clean === true) {
       this.emptyOutputDir()
+    } else if (isObject(output.clean)) {
+      this.emptyOutputDir(output.clean.keep || [])
     }
     this.printDevelopmentTip(this.platform)
     if (this.projectConfigJson) {
@@ -136,10 +142,15 @@ ${exampleCommand}`))
 
   private async buildImpl (extraOptions = {}) {
     const runner = await this.getRunner()
-    const options = this.getOptions(Object.assign({
-      runtimePath: this.runtimePath,
-      taroComponentsPath: this.taroComponentsPath
-    }, extraOptions))
+    const options = this.getOptions(
+      Object.assign(
+        {
+          runtimePath: this.runtimePath,
+          taroComponentsPath: this.taroComponentsPath
+        },
+        extraOptions
+      )
+    )
     await runner(options)
   }
 
@@ -160,7 +171,7 @@ ${exampleCommand}`))
    * 递归替换对象的 key 值
    */
   protected recursiveReplaceObjectKeys (obj, keyMap) {
-    Object.keys(obj).forEach(key => {
+    Object.keys(obj).forEach((key) => {
       if (keyMap[key]) {
         obj[keyMap[key]] = obj[key]
         if (typeof obj[key] === 'object') {
diff --git a/packages/taro-service/src/platform-plugin-base/platform.ts b/packages/taro-service/src/platform-plugin-base/platform.ts
index 31a858129102..bdd940e5252a 100644
--- a/packages/taro-service/src/platform-plugin-base/platform.ts
+++ b/packages/taro-service/src/platform-plugin-base/platform.ts
@@ -53,9 +53,9 @@ export default abstract class TaroPlatform<T extends TConfig = TConfig> {
     this.compiler = typeof _compiler === 'object' ? _compiler.type : _compiler
   }
 
-  protected emptyOutputDir () {
+  protected emptyOutputDir (excludes: Array<string | RegExp> = []) {
     const { outputPath } = this.ctx.paths
-    this.helper.emptyDirectory(outputPath)
+    this.helper.emptyDirectory(outputPath, { excludes })
   }
 
   /**
diff --git a/packages/taro-service/src/platform-plugin-base/web.ts b/packages/taro-service/src/platform-plugin-base/web.ts
index 2c87618e4111..65b3dec490b4 100644
--- a/packages/taro-service/src/platform-plugin-base/web.ts
+++ b/packages/taro-service/src/platform-plugin-base/web.ts
@@ -1,4 +1,4 @@
-import { PLATFORM_TYPE } from '@tarojs/shared'
+import { isObject, PLATFORM_TYPE } from '@tarojs/shared'
 import { get, merge } from 'lodash'
 import * as path from 'path'
 
@@ -20,9 +20,14 @@ export abstract class TaroPlatformWeb<T extends TConfig = TConfig> extends TaroP
   }
 
   private setupWebApp () {
-    const { needClearOutput } = this.config
-    if (typeof needClearOutput === 'undefined' || !!needClearOutput) {
+    const { output } = this.config
+    // webpack5 原生支持 output.clean 选项，但是 webpack4 不支持， 为统一行为，这里做一下兼容
+    // （在 packages/taro-mini-runner/src/webpack/chain.ts 和 packages/taro-webpack-runner/src/utils/chain.ts 的 makeConfig 中对 clean 选项做了过滤）
+    // eslint-disable-next-line eqeqeq
+    if (output == undefined || output.clean == undefined || output.clean === true) {
       this.emptyOutputDir()
+    } else if (isObject(output.clean)) {
+      this.emptyOutputDir(output.clean.keep || [])
     }
     this.printDevelopmentTip()
   }
diff --git a/packages/taro-swan/package.json b/packages/taro-swan/package.json
index cc3950549a30..68d179ab874c 100644
--- a/packages/taro-swan/package.json
+++ b/packages/taro-swan/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-platform-swan",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "百度小程序平台插件",
   "author": "Chen-jj",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/taro-swan#readme",
diff --git a/packages/taro-tt/package.json b/packages/taro-tt/package.json
index f282f3ec147d..33286a7a519a 100644
--- a/packages/taro-tt/package.json
+++ b/packages/taro-tt/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-platform-tt",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "头条小程序平台插件",
   "author": "Chen-jj",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/taro-tt#readme",
diff --git a/packages/taro-weapp/package.json b/packages/taro-weapp/package.json
index 45b8e391b5c7..d77d2530c4d1 100644
--- a/packages/taro-weapp/package.json
+++ b/packages/taro-weapp/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/plugin-platform-weapp",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "微信小程序平台插件",
   "author": "drchan",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/taro-weapp#readme",
diff --git a/packages/taro-webpack-runner/package.json b/packages/taro-webpack-runner/package.json
index 5e5e43225483..22b37dd4d498 100644
--- a/packages/taro-webpack-runner/package.json
+++ b/packages/taro-webpack-runner/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/webpack-runner",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "webpack runner for taro",
   "main": "index.js",
   "scripts": {
diff --git a/packages/taro-webpack-runner/src/utils/chain.ts b/packages/taro-webpack-runner/src/utils/chain.ts
index de4019f3c09d..953def5e4e13 100644
--- a/packages/taro-webpack-runner/src/utils/chain.ts
+++ b/packages/taro-webpack-runner/src/utils/chain.ts
@@ -18,6 +18,10 @@ import type { ICopyOptions, IPostcssOption, PostcssOption } from '@tarojs/taro/t
 import type { BuildConfig, Option } from './types'
 
 export const makeConfig = async (buildConfig: BuildConfig) => {
+  // 过滤原因：webpack4 不支持 output.clean 选项， 且 packages/taro-service/src/platform-plugin-base/web.ts 中实现了 output.clean
+  if (buildConfig.output && 'clean' in buildConfig.output) {
+    delete buildConfig.output.clean
+  }
   const sassLoaderOption = await getSassLoaderOption(buildConfig)
   return {
     ...buildConfig,
diff --git a/packages/taro-webpack5-prebundle/package.json b/packages/taro-webpack5-prebundle/package.json
index 5884d5a51477..74b13c54cb82 100644
--- a/packages/taro-webpack5-prebundle/package.json
+++ b/packages/taro-webpack5-prebundle/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/webpack5-prebundle",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro app webpack5 prebundle",
   "main": "dist/index.js",
   "scripts": {
diff --git a/packages/taro-webpack5-runner/package.json b/packages/taro-webpack5-runner/package.json
index b75c2349a1e5..7c6dd6f2ead0 100644
--- a/packages/taro-webpack5-runner/package.json
+++ b/packages/taro-webpack5-runner/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/webpack5-runner",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro app runner",
   "main": "index.js",
   "scripts": {
diff --git a/packages/taro-with-weapp/package.json b/packages/taro-with-weapp/package.json
index 9663a8c609aa..e2cc917269c2 100644
--- a/packages/taro-with-weapp/package.json
+++ b/packages/taro-with-weapp/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/with-weapp",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "taroize 之后的运行时",
   "main": "index.js",
   "files": [
diff --git a/packages/taro/package.json b/packages/taro/package.json
index 407fefa0659e..47f2c63e273f 100644
--- a/packages/taro/package.json
+++ b/packages/taro/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/taro",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "Taro framework",
   "homepage": "https://github.com/nervjs/taro/tree/master/packages/taro#readme",
   "main": "index.js",
diff --git a/packages/taro/types/compile/config/mini.d.ts b/packages/taro/types/compile/config/mini.d.ts
index 8fb24a4c0c2f..0d1890d2f072 100644
--- a/packages/taro/types/compile/config/mini.d.ts
+++ b/packages/taro/types/compile/config/mini.d.ts
@@ -35,7 +35,20 @@ export interface IMiniAppConfig {
   webpackChain?: (chain: Chain, webpack: typeof Webpack, PARSE_AST_TYPE: any) => void
 
   /** 可用于修改、拓展 Webpack 的 [output](https://webpack.js.org/configuration/output/) 选项 */
-  output?: Webpack.Configuration['output']
+  output?: Webpack.Configuration['output'] & {
+    /**
+     * 编译前清空输出目录
+     * @since Taro v3.6.9
+     * @description 
+     * - 默认清空输出目录，可设置 clean: false 不清空
+     * - 可设置 clean: { keep: ['project.config.json'] } 保留指定文件
+     * - 注意 clean.keep 不支持函数
+     */
+    clean?: boolean | {
+      /** 保留指定文件不删除 */
+      keep?: Array<string | RegExp> | string | RegExp
+    }
+  }
 
   /** 配置 postcss 相关插件 */
   postcss?: IPostcssOption
diff --git a/packages/taroize/package.json b/packages/taroize/package.json
index 7ef63f8fcf37..2e1d9804f9ff 100644
--- a/packages/taroize/package.json
+++ b/packages/taroize/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tarojs/taroize",
-  "version": "3.6.9-alpha.5",
+  "version": "3.6.9-alpha.7",
   "description": "转换原生微信小程序代码为 Taro 代码",
   "main": "index.js",
   "files": [