diff --git a/zh-cn/device-dev/Readme-CN.md b/zh-cn/device-dev/Readme-CN.md
index c673c5fb5c02dbe61f71c2e97ae8b03033bff179..e7b11c2796c1e4a37337c85ef5a9830e66e3ee29 100644
--- a/zh-cn/device-dev/Readme-CN.md
+++ b/zh-cn/device-dev/Readme-CN.md
@@ -1,8 +1,8 @@
 # 设备开发
 
+- [设备开发导读](device-dev-guide.md) 
 - 了解OpenHarmony
   - [了解OpenHarmony开源项目](../OpenHarmony-Overview_zh.md) 
-  - [了解OpenHarmony系统](../readme.md) 
   - [术语](glossary/glossary.md) 
   - [版本说明](../release-notes/Readme.md) 
 - 快速开始