diff --git a/zh-cn/application-dev/reference/errorcodes/Readme-CN.md b/zh-cn/application-dev/reference/errorcodes/Readme-CN.md
index 3a4205a1629c71cfe5acb2efc20dec49768fac60..c1b68c5f93a4c52cdc977af161ee3675372c7062 100644
--- a/zh-cn/application-dev/reference/errorcodes/Readme-CN.md
+++ b/zh-cn/application-dev/reference/errorcodes/Readme-CN.md
@@ -56,6 +56,7 @@
   - [Hidebug错误码](errorcode-hiviewdfx-hidebug.md)
   - [输入法框架错误码](errorcode-inputmethod-framework.md)
   - [剪贴板错误码](errorcode-pasteboard.md)
+  - [锁屏服务错误码](errorcode-screenlock.md)
   - [Webview错误码](errorcode-webview.md)
 - 帐号管理
   - [Account错误码](errorcode-account.md)