update readme
diff --git a/README.md b/README.md
index cdbdd27..0016c94 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,11 @@
 * dubbo-monitor-simple
 * dubbo-registry-simple
 
+
+## NOTICE  
+dubbo admin is under refactoring, please checkout the `develop` branch
+
+
 ## How to use it
 
 ### dubbo admin