diff --git a/zh-cn/device-dev/Readme-CN.md b/zh-cn/device-dev/Readme-CN.md
index 343ecb8512980e45ecae87af3f07ffb9ab16e222..cb97523cb570e086bc512dbad6970149f6af897f 100644
--- a/zh-cn/device-dev/Readme-CN.md
+++ b/zh-cn/device-dev/Readme-CN.md
@@ -52,7 +52,7 @@
   - [IDE集成开发环境](get-code/gettools-ide.md)
 
 - 示例教程	
-  - [Demo示例](device-demo.md)
+  - [Demo示例](https://growing.openharmony.cn/mainPlay/sample)
   - [Codelabs](https://gitee.com/openharmony/codelabs/blob/master/README.md)  
 - 参考
   - [常见问题-设备开发](faqs/Readme-CN.md)