diff --git a/Changes.md b/Changes.md
index 8c38fcf6..734949a9 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,3 +1,6 @@
+v1.0.3
+- Add check update
+
 v1.0.2
 - Add deployment
 - Fix bugs
diff --git a/README.md b/README.md
index a90ab23c..838c4a38 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,8 @@
 > - [x] NextCloud  
 
 ## Client-Windows  
-下载最新的[Release](https://github.com/Jeric-X/SyncClipboard/releases/)
+下载最新的[Release](https://github.com/Jeric-X/SyncClipboard/releases/)，自备梯子  
+或者clone or下载源码，VS2013及以上编译
 ## Client-IOS 
 使用[Workflow](https://appsto.re/cn/2IzJ2.i)提供的`Get Contents of URL`功能发送HTTP协议  
 导入这个[Workflow](https://workflow.is/workflows/6da4c1de8b1446cda56e336b1ed50b25)
diff --git a/SyncClipboard/MainForm.Designer.cs b/SyncClipboard/MainForm.Designer.cs
index 62c9faa3..681b9182 100644
--- a/SyncClipboard/MainForm.Designer.cs
+++ b/SyncClipboard/MainForm.Designer.cs
@@ -39,6 +39,7 @@ private void InitializeComponent()
             this.下载远程ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.toolStripMenuItem1 = new System.Windows.Forms.ToolStripSeparator();
             this.退出ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.检查更新ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.notifyMenu.SuspendLayout();
             this.SuspendLayout();
             // 
@@ -58,6 +59,7 @@ private void InitializeComponent()
             this.notifyMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
             this.设置ToolStripMenuItem,
             this.开机启动ToolStripMenuItem,
+            this.检查更新ToolStripMenuItem,
             this.toolStripMenuItem2,
             this.上传本机ToolStripMenuItem,
             this.下载远程ToolStripMenuItem,
@@ -68,12 +70,12 @@ private void InitializeComponent()
             this.notifyMenu.ShowCheckMargin = true;
             this.notifyMenu.ShowImageMargin = false;
             this.notifyMenu.ShowItemToolTips = false;
-            this.notifyMenu.Size = new System.Drawing.Size(145, 146);
+            this.notifyMenu.Size = new System.Drawing.Size(182, 200);
             // 
             // 设置ToolStripMenuItem
             // 
             this.设置ToolStripMenuItem.Name = "设置ToolStripMenuItem";
-            this.设置ToolStripMenuItem.Size = new System.Drawing.Size(144, 26);
+            this.设置ToolStripMenuItem.Size = new System.Drawing.Size(181, 26);
             this.设置ToolStripMenuItem.Text = "设置";
             this.设置ToolStripMenuItem.Click += new System.EventHandler(this.设置ToolStripMenuItem_Click);
             // 
@@ -81,20 +83,20 @@ private void InitializeComponent()
             // 
             this.开机启动ToolStripMenuItem.CheckOnClick = true;
             this.开机启动ToolStripMenuItem.Name = "开机启动ToolStripMenuItem";
-            this.开机启动ToolStripMenuItem.Size = new System.Drawing.Size(144, 26);
+            this.开机启动ToolStripMenuItem.Size = new System.Drawing.Size(181, 26);
             this.开机启动ToolStripMenuItem.Text = "开机启动";
             this.开机启动ToolStripMenuItem.Click += new System.EventHandler(this.开机启动ToolStripMenuItem_Click);
             // 
             // toolStripMenuItem2
             // 
             this.toolStripMenuItem2.Name = "toolStripMenuItem2";
-            this.toolStripMenuItem2.Size = new System.Drawing.Size(141, 6);
+            this.toolStripMenuItem2.Size = new System.Drawing.Size(178, 6);
             // 
             // 上传本机ToolStripMenuItem
             // 
             this.上传本机ToolStripMenuItem.CheckOnClick = true;
             this.上传本机ToolStripMenuItem.Name = "上传本机ToolStripMenuItem";
-            this.上传本机ToolStripMenuItem.Size = new System.Drawing.Size(144, 26);
+            this.上传本机ToolStripMenuItem.Size = new System.Drawing.Size(181, 26);
             this.上传本机ToolStripMenuItem.Text = "上传本机";
             this.上传本机ToolStripMenuItem.Click += new System.EventHandler(this.上传本机ToolStripMenuItem_Click);
             // 
@@ -102,22 +104,29 @@ private void InitializeComponent()
             // 
             this.下载远程ToolStripMenuItem.CheckOnClick = true;
             this.下载远程ToolStripMenuItem.Name = "下载远程ToolStripMenuItem";
-            this.下载远程ToolStripMenuItem.Size = new System.Drawing.Size(144, 26);
+            this.下载远程ToolStripMenuItem.Size = new System.Drawing.Size(181, 26);
             this.下载远程ToolStripMenuItem.Text = "下载远程";
             this.下载远程ToolStripMenuItem.Click += new System.EventHandler(this.下载远程ToolStripMenuItem_Click);
             // 
             // toolStripMenuItem1
             // 
             this.toolStripMenuItem1.Name = "toolStripMenuItem1";
-            this.toolStripMenuItem1.Size = new System.Drawing.Size(141, 6);
+            this.toolStripMenuItem1.Size = new System.Drawing.Size(178, 6);
             // 
             // 退出ToolStripMenuItem
             // 
             this.退出ToolStripMenuItem.Name = "退出ToolStripMenuItem";
-            this.退出ToolStripMenuItem.Size = new System.Drawing.Size(144, 26);
+            this.退出ToolStripMenuItem.Size = new System.Drawing.Size(181, 26);
             this.退出ToolStripMenuItem.Text = "退出";
             this.退出ToolStripMenuItem.Click += new System.EventHandler(this.退出ToolStripMenuItem_Click);
             // 
+            // 检查更新ToolStripMenuItem
+            // 
+            this.检查更新ToolStripMenuItem.Name = "检查更新ToolStripMenuItem";
+            this.检查更新ToolStripMenuItem.Size = new System.Drawing.Size(181, 26);
+            this.检查更新ToolStripMenuItem.Text = "检查更新";
+            this.检查更新ToolStripMenuItem.Click += new System.EventHandler(this.检查更新ToolStripMenuItem_Click);
+            // 
             // MainForm
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 15F);
@@ -144,6 +153,7 @@ private void InitializeComponent()
         private System.Windows.Forms.ToolStripMenuItem 上传本机ToolStripMenuItem;
         private System.Windows.Forms.ToolStripMenuItem 下载远程ToolStripMenuItem;
         private System.Windows.Forms.ToolStripSeparator toolStripMenuItem1;
+        private System.Windows.Forms.ToolStripMenuItem 检查更新ToolStripMenuItem;
     }
 }
 
diff --git a/SyncClipboard/MainForm.cs b/SyncClipboard/MainForm.cs
index 37ac6b7b..791a9c4e 100644
--- a/SyncClipboard/MainForm.cs
+++ b/SyncClipboard/MainForm.cs
@@ -151,5 +151,11 @@ private void 下载远程ToolStripMenuItem_Click(object sender, EventArgs e)
             Config.IfPull = this.下载远程ToolStripMenuItem.Checked;
             Config.Save();
         }
+
+        private void 检查更新ToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            UpdateChecker updateChecker = new UpdateChecker();
+            updateChecker.Check();
+        }
     }
 }
diff --git a/SyncClipboard/Properties/Settings.Designer.cs b/SyncClipboard/Properties/Settings.Designer.cs
index 656ec1ba..bbcb9470 100644
--- a/SyncClipboard/Properties/Settings.Designer.cs
+++ b/SyncClipboard/Properties/Settings.Designer.cs
@@ -25,8 +25,7 @@ public static Settings Default {
         
         [global::System.Configuration.UserScopedSettingAttribute()]
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-        [global::System.Configuration.DefaultSettingValueAttribute("https://cloud.jericx.xyz/remote.php/dav/files/JericX/Clipboard/SyncClipboard.json" +
-            "")]
+        [global::System.Configuration.DefaultSettingValueAttribute("https://cloud.jericx.xyz/remote.php/dav/files/JericX/Clipboard/SyncClipboard.json")]
         public string URL {
             get {
                 return ((string)(this["URL"]));
diff --git a/SyncClipboard/SyncClipboard.csproj b/SyncClipboard/SyncClipboard.csproj
index 041f59e6..91f0e351 100644
--- a/SyncClipboard/SyncClipboard.csproj
+++ b/SyncClipboard/SyncClipboard.csproj
@@ -102,8 +102,11 @@
     </Compile>
     <EmbeddedResource Include="SettingsForm.resx">
       <DependentUpon>SettingsForm.cs</DependentUpon>
+      <SubType>Designer</SubType>
     </EmbeddedResource>
-    <None Include="app.config" />
+    <None Include="app.config">
+      <SubType>Designer</SubType>
+    </None>
     <None Include="Properties\Settings.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
diff --git a/SyncClipboard/UpdateChecker.cs b/SyncClipboard/UpdateChecker.cs
index a21fff56..05f22dcc 100644
--- a/SyncClipboard/UpdateChecker.cs
+++ b/SyncClipboard/UpdateChecker.cs
@@ -1,13 +1,55 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
+using System.Net;
 using System.Text;
 using System.Threading.Tasks;
+using System.Web.Script.Serialization;
+using System.Windows.Forms;
 
 namespace SyncClipboard
 {
     class UpdateChecker
     {
-        public const string Version = "1.0.2";
+        public const string Version = "1.0.3";
+        public const string UpdateUrl = "https://api.github.com/repos/Jeric-X/SyncClipboard/releases/latest";
+        public const string ReleaseUrl = "https://github.com/Jeric-X/SyncClipboard/releases/latest";
+
+        public bool Check()
+        {
+            HttpWebResponse httpWebResponse = null;
+            try
+            {
+                httpWebResponse = HttpWebResponseUtility.CreateGetHttpResponse(UpdateUrl, Config.TimeOut, null, null, null);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message.ToString());
+                return false;
+            }
+            StreamReader objStrmReader = new StreamReader(httpWebResponse.GetResponseStream());
+            String strReply = objStrmReader.ReadToEnd();
+            JavaScriptSerializer serializer = new JavaScriptSerializer();
+            UpdateConvertJson p1 = null;
+            try
+            {
+                p1 = serializer.Deserialize<UpdateConvertJson>(strReply);
+                if (String.Compare(p1.name, "v" + Version) > 0)
+                    if (MessageBox.Show("v" + Version + " -> " + p1.name + "\n\n是否更新", "检测到新版本", MessageBoxButtons.OKCancel) == DialogResult.OK)
+                        System.Diagnostics.Process.Start(UpdateChecker.ReleaseUrl);
+            }
+            catch (Exception e)
+            {
+                MessageBox.Show(e.Message.ToString());
+            }
+            return false;
+        }
+    }
+    class UpdateConvertJson
+    {
+        public String name { get; set; }
+        
+        public String rowser_download_url { get; set; }
     }
 }