diff --git a/README.md b/README.md
index 87038d8..77f961a 100644
--- a/README.md
+++ b/README.md
@@ -162,6 +162,17 @@ app.use(function*(){
 });
 ```
 
+### use for koa2
+
+```javascript
+var app = require('xtpl/lib/koa')(require('koa')(),{
+    views:'./views'
+});
+app.use( async (ctx, next){
+    ctx.body = await ctx.render('test',{data: 1});   //需要把渲染完的字符串传给body
+});
+```
+
 ## Example
 
     ├── footer.xtpl
@@ -238,4 +249,4 @@ https://github.com/xtemplate/xtpl/milestones
 
 ## License
 
-xtpl is released under the MIT license.
\ No newline at end of file
+xtpl is released under the MIT license.