diff --git a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewActivity.kt b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewActivity.kt
index d455a722f..fe4f0c217 100644
--- a/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewActivity.kt
+++ b/sdkdemo/src/main/java/com/tencent/iot/explorer/link/demo/video/preview/VideoPreviewActivity.kt
@@ -141,7 +141,12 @@ class VideoPreviewActivity : VideoBaseActivity(), EventView, TextureView.Surface
                 App.data.accessInfo!!.productId, presenter.getDeviceName(), "")
             if (started != 0) {
                 launch(Dispatchers.Main) {
-                    var errInfo = getString(R.string.error_with_code, id, started.toString())
+                    var errInfo = ""
+                    if (started.toString() == "-1007") {
+                        errInfo = getString(R.string.xp2p_err_version)
+                    } else {
+                        errInfo = getString(R.string.error_with_code, id, started.toString())
+                    }
                     Toast.makeText(this@VideoPreviewActivity, errInfo, Toast.LENGTH_SHORT).show()
                 }
                 return@Runnable
diff --git a/sdkdemo/src/main/res/values/strings.xml b/sdkdemo/src/main/res/values/strings.xml
index 5cc334dbd..5f0fcb227 100644
--- a/sdkdemo/src/main/res/values/strings.xml
+++ b/sdkdemo/src/main/res/values/strings.xml
@@ -97,6 +97,7 @@
     <string name="disconnected_and_reconnecting">%s 通道断开，正在重连</string>
     <string name="connected">%s 通道建立成功</string>
     <string name="error_with_code">%s 连接错误码 %s，通道断开</string>
+    <string name="xp2p_err_version">APP SDK 版本与设备端 SDK 版本号不匹配，版本号需前两位保持一致</string>
     <string name="command_with_error">执行信令 %s 不成功</string>
     <string name="loading">加载中</string>