diff --git a/components/form/demo/mix.md b/components/form/demo/mix.md
index bdb2c680c0..986c5cf4f1 100644
--- a/components/form/demo/mix.md
+++ b/components/form/demo/mix.md
@@ -17,6 +17,7 @@ var Dropdown = antd.Dropdown;
 var Slider = antd.Slider;
 var Checkbox = antd.Checkbox;
 var Radio = antd.Radio;
+var RadioGroup = antd.RadioGroup;
 
 var menu = <Menu>
   <Menu.Item>
@@ -101,15 +102,12 @@ React.render(
     <div className="ant-form-item ant-form-item-compact">
       <label for="" className="col-6" required>ant-radio:</label>
       <div className="col-16">
-        <label className="ant-radio-inline">
-          <Radio name="radio" />选项一
-        </label>
-        <label className="ant-radio-inline">
-          <Radio name="radio" />选项二
-        </label>
-        <label className="ant-radio-inline">
-          <Radio name="radio" />选项三
-        </label>
+        <RadioGroup>
+          <Radio value="a" checked={true}>选项一</Radio>
+          <Radio value="b">选项二</Radio>
+          <Radio value="c">选项三</Radio>
+          <Radio value="d">选项四</Radio>
+        </RadioGroup>
       </div>
     </div>
     <div className="ant-form-item ant-form-item-compact">
diff --git a/components/radio/group.jsx b/components/radio/group.jsx
index a75ff11727..aa143170be 100644
--- a/components/radio/group.jsx
+++ b/components/radio/group.jsx
@@ -26,7 +26,7 @@ var AntRadioGroup = React.createClass({
       if (radio.props) {
         return <Radio {...radio.props}
           onChange={self.onRadioChange}
-          checked = {self.state.selectedValue === radio.props.value}
+          checked={self.state.selectedValue === radio.props.value}
         />;
       }
       return radio;
@@ -41,7 +41,9 @@ var AntRadioGroup = React.createClass({
     this.setState({
       selectedValue: ev.target.value
     });
-    this.props.onChange(ev);
+    if (typeof this.props.onChange === 'function') {
+      this.props.onChange(ev);
+    }
   }
 });
 
diff --git a/components/radio/index.jsx b/components/radio/index.jsx
index b66782798d..1f06a282a3 100644
--- a/components/radio/index.jsx
+++ b/components/radio/index.jsx
@@ -8,10 +8,9 @@ var AntRadio = React.createClass({
     };
   },
   render() {
-
     return (
       <label>
-        <Radio {...this.props} children={null}/>
+        <Radio {...this.props} children={null} />
         {this.props.children}
       </label>
     );
diff --git a/style/components/radio.less b/style/components/radio.less
index 7fe9b62c2e..d51e7814a6 100644
--- a/style/components/radio.less
+++ b/style/components/radio.less
@@ -4,8 +4,8 @@
 @radioDuration: .3s;
 
 .@{radioGroupPrefixCls} {
-  & label{
-    margin-right: 10px;
+  label {
+    margin-right: 16px;
   }
 }