diff --git a/components/tree/demo/basic-controlled.md b/components/tree/demo/basic-controlled.md
index f462b6ace6..1d423f1bbb 100644
--- a/components/tree/demo/basic-controlled.md
+++ b/components/tree/demo/basic-controlled.md
@@ -9,7 +9,7 @@
 ````jsx
 import { Tree } from 'antd';
 const TreeNode = Tree.TreeNode;
-import React, { PropTypes } from 'react';
+const PropTypes = React.PropTypes;
 
 const x = 3;
 const y = 2;
diff --git a/components/tree/demo/basic.md b/components/tree/demo/basic.md
index 43c05ef630..cafe791f5d 100644
--- a/components/tree/demo/basic.md
+++ b/components/tree/demo/basic.md
@@ -9,7 +9,7 @@
 ````jsx
 import { Tree } from 'antd';
 const TreeNode = Tree.TreeNode;
-import React, { PropTypes } from 'react';
+const PropTypes = React.PropTypes;
 
 const Demo = React.createClass({
   propTypes: {
diff --git a/components/tree/demo/contextmenu.md b/components/tree/demo/contextmenu.md
index 86f74407ad..25182c80ed 100644
--- a/components/tree/demo/contextmenu.md
+++ b/components/tree/demo/contextmenu.md
@@ -10,7 +10,6 @@
 import { Tree, Tooltip } from 'antd';
 import assign from 'object-assign';
 const TreeNode = Tree.TreeNode;
-import React from 'react';
 
 function contains(root, n) {
   let node = n;
diff --git a/components/tree/demo/draggable.md b/components/tree/demo/draggable.md
index e7fd3b29bc..1703ac54d4 100644
--- a/components/tree/demo/draggable.md
+++ b/components/tree/demo/draggable.md
@@ -9,7 +9,6 @@
 ````jsx
 import { Tree } from 'antd';
 const TreeNode = Tree.TreeNode;
-import React from 'react';
 
 const x = 3;
 const y = 2;
diff --git a/components/tree/demo/dynamic.md b/components/tree/demo/dynamic.md
index 2fa3fe2092..d1b9eefe0f 100644
--- a/components/tree/demo/dynamic.md
+++ b/components/tree/demo/dynamic.md
@@ -9,7 +9,6 @@
 ````jsx
 import { Tree } from 'antd';
 const TreeNode = Tree.TreeNode;
-import React from 'react';
 
 function generateTreeNodes(treeNode) {
   const arr = [];