diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,41 +1,25 @@
 # [CH552](https://github.com/mcuyun/CH552) 
 
-WCH CH552单片机
-
 [![sites](mcuyun/mcuyun.png)](http://www.mcuyun.com)
 
-#### 更多MCU：[mcuyun](https://github.com/mcuyun/whyme)可访问 www.mcuyun.com
+#### 设备归属：[WCH](https://github.com/mcuyun/WCH) 
 
----
-
-## 简介
-
-最廉价的USB通信单片机，如果要做一款低成本的交互式产品，该平台十分合适
+## [简介](https://github.com/mcuyun/CH552/wiki) 
 
 基于8051内核24MHz主频，足够丰富的外设和USB通信能力，项目的工程通过keil c51编译开发，开发环境相对友好。
 
----
 
-## 组成
+## [组成](mcuyun/) 
 
-#### LCD
+#### [数据手册](docs/) 
 
-包括LCD通信工程代码
+包括芯片手册和参考设计
 
-#### HID
+#### [工程文件](projects/) 
 
-包括一个HID通信的工程代码
-
-#### examples
-
-- 同CH554的官方例程
-
-更多资源：http://www.wch.cn/downloads/category/28.html
-
-- 程序下载工具
-
-http://www.wch.cn/download/WCHISPTool_Setup_exe.html
 
 ---
 
-###  www.mcuyun.com   |    qitas@qitas.cn
\ No newline at end of file
+###  [悠云，为嵌入式](http://www.mcuyun.com)
+####  qitas@qitas.cn
+####  2019-1-4
\ No newline at end of file
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