diff --git a/src/form/README.zh-CN.md b/src/form/README.zh-CN.md
index d27e47fe7..a55a6df28 100644
--- a/src/form/README.zh-CN.md
+++ b/src/form/README.zh-CN.md
@@ -38,7 +38,9 @@ app.use(Form);
     :rules="[{ required: true, message: '请填写密码' }]"
   />
   <div style="margin: 16px;">
-    <van-button round block type="info" native-type="submit">提交</van-button>
+    <van-button round block type="primary" native-type="submit">
+      提交
+    </van-button>
   </div>
 </van-form>
 ```