diff --git a/zh-cn/device-dev/Readme-CN.md b/zh-cn/device-dev/Readme-CN.md
index e235aea3f4b7cec27e57bf079b1fdb7ea9c19926..343ecb8512980e45ecae87af3f07ffb9ab16e222 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	
-  - [示例代码](https://gitee.com/openharmony/app_samples/blob/master/README_zh.md) 
+  - [Demo示例](device-demo.md)
   - [Codelabs](https://gitee.com/openharmony/codelabs/blob/master/README.md)  
 - 参考
   - [常见问题-设备开发](faqs/Readme-CN.md)