diff --git a/README.md b/README.md
index 94561e2..7e77033 100644
--- a/README.md
+++ b/README.md
@@ -28,4 +28,6 @@
 
 ## DataBindingDemo
 
+[![](https://img.shields.io/badge/APK%20download-1.83M-green.svg)](https://github.com/alidili/Demos/raw/master/DataBindingDemo/DataBindingDemo.apk)
+
 [《Android DataBinding使用详解（一）》](http://blog.csdn.net/kong_gu_you_lan/article/details/75628465)
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