diff --git a/README.md b/README.md
index 5f03e24c..2844c72b 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@
 
     
 
-    
+![开发板](https://gitee.com/kerwincui/wumei-smart/raw/master/document/2.jpg)     
 
 ![参考设备](https://gitee.com/kerwincui/wumei-smart/raw/master/document/1.jpg)