diff --git a/src/radio/_usage/props.json b/src/radio/_usage/props.json
index d5488e6f3..04ddfe711 100644
--- a/src/radio/_usage/props.json
+++ b/src/radio/_usage/props.json
@@ -18,7 +18,7 @@
     "options": []
   },
   {
-    "name": "value",
+    "name": "readonly",
     "type": "Boolean",
     "defaultValue": false,
     "options": []
diff --git a/src/radio/instance.ts b/src/radio/instance.ts
index 3d934ff2b..d34e5112d 100644
--- a/src/radio/instance.ts
+++ b/src/radio/instance.ts
@@ -4,5 +4,5 @@ import { RadioValue } from './type';
 
 export type RadioButtonInstance = InstanceType<typeof RadioButton>;
 export type RadioGroupInstance = InstanceType<typeof RadioGroup> & {
-  handleRadioChange: (value: RadioValue, context: { e: Event }) => void;
+  handleRadioChange: (value: RadioValue, context: { e: Event; name?: string }) => void;
 };
diff --git a/src/radio/props.ts b/src/radio/props.ts
index 1e1467b1a..16cb6e251 100644
--- a/src/radio/props.ts
+++ b/src/radio/props.ts
@@ -11,14 +11,17 @@ export default {
   /** 是否允许取消选中 */
   allowUncheck: Boolean,
   /** 是否选中 */
-  checked: Boolean,
+  checked: {
+    type: Boolean,
+    default: undefined,
+  },
   /** 是否选中，非受控属性 */
   defaultChecked: Boolean,
   /** 单选按钮内容，同 label */
   default: {
     type: [String, Function] as PropType<TdRadioProps['default']>,
   },
-  /** 是否为禁用态 */
+  /** 是否为禁用态。如果存在父组件 RadioGroup，默认值由 RadioGroup.disabled 控制。优先级：Radio.disabled > RadioGroup.disabled > Form.disabled */
   disabled: {
     type: Boolean,
     default: undefined,
@@ -32,6 +35,11 @@ export default {
     type: String,
     default: '',
   },
+  /** 只读状态 */
+  readonly: {
+    type: Boolean,
+    default: undefined,
+  },
   /** 单选按钮的值 */
   value: {
     type: [String, Number, Boolean] as PropType<TdRadioProps['value']>,
diff --git a/src/radio/radio-button.tsx b/src/radio/radio-button.tsx
index bbb8e8ffc..8629d65ed 100644
--- a/src/radio/radio-button.tsx
+++ b/src/radio/radio-button.tsx
@@ -40,6 +40,7 @@ export default (Vue as VueConstructor<RadioButtonInstance>).extend({
     if (radioGroup) {
       radioProps.props.checked = $props.value === radioGroup.value;
       radioProps.props.disabled = $props.disabled === undefined ? radioGroup.disabled : $props.disabled;
+      radioProps.props.readonly = $props.readonly === undefined ? radioGroup.readonly : $props.readonly;
       radioProps.props.name = radioGroup.name;
     }
 
diff --git a/src/radio/radio-group-props.ts b/src/radio/radio-group-props.ts
index f8279d3cb..c216bb48d 100644
--- a/src/radio/radio-group-props.ts
+++ b/src/radio/radio-group-props.ts
@@ -10,7 +10,7 @@ import { PropType } from 'vue';
 export default {
   /** 是否允许取消选中 */
   allowUncheck: Boolean,
-  /** 是否禁用全部子单选框 */
+  /** 是否禁用全部子单选框。优先级：Radio.disabled > RadioGroup.disabled > Form.disabled */
   disabled: {
     type: Boolean,
     default: undefined,
@@ -24,13 +24,10 @@ export default {
   options: {
     type: Array as PropType<TdRadioGroupProps['options']>,
   },
-  /** 组件风格 */
-  theme: {
-    type: String as PropType<TdRadioGroupProps['theme']>,
-    default: 'radio' as TdRadioGroupProps['theme'],
-    validator(val: TdRadioGroupProps['theme']): boolean {
-      return ['radio', 'button'].includes(val);
-    },
+  /** 只读状态 */
+  readonly: {
+    type: Boolean,
+    default: undefined,
   },
   /** 组件尺寸【讨论中】 */
   size: {
@@ -41,9 +38,19 @@ export default {
       return ['small', 'medium', 'large'].includes(val);
     },
   },
+  /** 组件风格 */
+  theme: {
+    type: String as PropType<TdRadioGroupProps['theme']>,
+    default: 'radio' as TdRadioGroupProps['theme'],
+    validator(val: TdRadioGroupProps['theme']): boolean {
+      if (!val) return true;
+      return ['radio', 'button'].includes(val);
+    },
+  },
   /** 选中的值 */
   value: {
     type: [String, Number, Boolean] as PropType<TdRadioGroupProps['value']>,
+    default: undefined,
   },
   /** 选中的值，非受控属性 */
   defaultValue: {
@@ -58,6 +65,6 @@ export default {
       return ['outline', 'primary-filled', 'default-filled'].includes(val);
     },
   },
-  /** 选中值发生变化时触发 */
+  /** 选中值发生变化时触发, `context.name` 指 RadioGroup 的 name 属性 */
   onChange: Function as PropType<TdRadioGroupProps['onChange']>,
 };
diff --git a/src/radio/radio.en-US.md b/src/radio/radio.en-US.md
index 40f58a983..410a21616 100644
--- a/src/radio/radio.en-US.md
+++ b/src/radio/radio.en-US.md
@@ -1,6 +1,7 @@
 :: BASE_DOC ::
 
 ## API
+
 ### Radio Props
 
 name | type | default | description | required
@@ -12,6 +13,7 @@ default | String / Slot / Function | - | Typescript：`string \| TNode`。[see m
 disabled | Boolean | undefined | \- | N
 label | String / Slot / Function | - | Typescript：`string \| TNode`。[see more ts definition](https://github.com/Tencent/tdesign-vue/blob/develop/src/common.ts) | N
 name | String | - | \- | N
+readonly | Boolean | undefined | \- | N
 value | String / Number / Boolean | undefined | Typescript：`T` | N
 onChange | Function |  | Typescript：`(checked: boolean, context: { e: Event }) => void`<br/> | N
 onClick | Function |  | Typescript：`(context: { e: MouseEvent }) => void`<br/>trigger on click | N
@@ -23,6 +25,7 @@ name | params | description
 change | `(checked: boolean, context: { e: Event })` | \-
 click | `(context: { e: MouseEvent })` | trigger on click
 
+
 ### RadioGroup Props
 
 name | type | default | description | required
@@ -30,16 +33,17 @@ name | type | default | description | required
 allowUncheck | Boolean | false | \- | N
 disabled | Boolean | undefined | \- | N
 name | String | - | \- | N
-options | Array | - | Typescript：`Array<RadioOption>` `type RadioOption = string \| number \| RadioOptionObj` `interface RadioOptionObj { label?: string \| TNode; value?: string \| number; disabled?: boolean }`。[see more ts definition](https://github.com/Tencent/tdesign-vue/blob/develop/src/common.ts)。[see more ts definition](https://github.com/Tencent/tdesign-vue/tree/develop/src/radio/type.ts) | N
-theme | String | radio | options：radio/button。 | N
-size | String | medium | options：small/medium/large。Typescript：`SizeEnum`。[see more ts definition](https://github.com/Tencent/tdesign-vue/blob/develop/src/common.ts) | N
-value | String / Number / Boolean | - | `v-model` is supported。Typescript：`T` | N
-defaultValue | String / Number / Boolean | - | uncontrolled property。Typescript：`T` | N
-variant | String | outline | options：outline/primary-filled/default-filled | N
-onChange | Function |  | Typescript：`(value: T, context: { e: Event }) => void`<br/> | N
+options | Array | - | Typescript：`Array<RadioOption>` `type RadioOption = string \| number \| RadioOptionObj` `interface RadioOptionObj { label?: string \| TNode; value?: string \| number \| boolean; disabled?: boolean }`。[see more ts definition](https://github.com/Tencent/tdesign-vue/blob/develop/src/common.ts)。[see more ts definition](https://github.com/Tencent/tdesign-vue/tree/develop/src/radio/type.ts) | N
+readonly | Boolean | undefined | \- | N
+size | String | medium | options: small/medium/large。Typescript：`SizeEnum`。[see more ts definition](https://github.com/Tencent/tdesign-vue/blob/develop/src/common.ts) | N
+theme | String | radio | options: radio/button | N
+value | String / Number / Boolean | - | `v-model` is supported。Typescript：`T` `type RadioValue = string \| number \| boolean`。[see more ts definition](https://github.com/Tencent/tdesign-vue/tree/develop/src/radio/type.ts) | N
+defaultValue | String / Number / Boolean | - | uncontrolled property。Typescript：`T` `type RadioValue = string \| number \| boolean`。[see more ts definition](https://github.com/Tencent/tdesign-vue/tree/develop/src/radio/type.ts) | N
+variant | String | outline | options: outline/primary-filled/default-filled | N
+onChange | Function |  | Typescript：`(value: T, context: { e: Event; name?:string }) => void`<br/> | N
 
 ### RadioGroup Events
 
 name | params | description
 -- | -- | --
-change | `(value: T, context: { e: Event })` | \-
+change | `(value: T, context: { e: Event; name?:string })` | \-
diff --git a/src/radio/radio.md b/src/radio/radio.md
index 66e63192f..4a6163afa 100644
--- a/src/radio/radio.md
+++ b/src/radio/radio.md
@@ -1,17 +1,19 @@
 :: BASE_DOC ::
 
 ## API
+
 ### Radio Props
 
-名称 | 类型 | 默认值 | 说明 | 必传
+名称 | 类型 | 默认值 | 描述 | 必传
 -- | -- | -- | -- | --
 allowUncheck | Boolean | false | 是否允许取消选中 | N
 checked | Boolean | false | 是否选中。支持语法糖 `v-model` | N
 defaultChecked | Boolean | false | 是否选中。非受控属性 | N
 default | String / Slot / Function | - | 单选按钮内容，同 label。TS 类型：`string \| TNode`。[通用类型定义](https://github.com/Tencent/tdesign-vue/blob/develop/src/common.ts) | N
-disabled | Boolean | undefined | 是否为禁用态 | N
+disabled | Boolean | undefined | 是否为禁用态。如果存在父组件 RadioGroup，默认值由 RadioGroup.disabled 控制。优先级：Radio.disabled > RadioGroup.disabled > Form.disabled | N
 label | String / Slot / Function | - | 主文案。TS 类型：`string \| TNode`。[通用类型定义](https://github.com/Tencent/tdesign-vue/blob/develop/src/common.ts) | N
 name | String | - | HTML 元素原生属性 | N
+readonly | Boolean | undefined | 只读状态 | N
 value | String / Number / Boolean | undefined | 单选按钮的值。TS 类型：`T` | N
 onChange | Function |  | TS 类型：`(checked: boolean, context: { e: Event }) => void`<br/>选中状态变化时触发 | N
 onClick | Function |  | TS 类型：`(context: { e: MouseEvent }) => void`<br/>点击时触发，一般用于外层阻止冒泡场景 | N
@@ -23,23 +25,25 @@ onClick | Function |  | TS 类型：`(context: { e: MouseEvent }) => void`<br/>
 change | `(checked: boolean, context: { e: Event })` | 选中状态变化时触发
 click | `(context: { e: MouseEvent })` | 点击时触发，一般用于外层阻止冒泡场景
 
+
 ### RadioGroup Props
 
-名称 | 类型 | 默认值 | 说明 | 必传
+名称 | 类型 | 默认值 | 描述 | 必传
 -- | -- | -- | -- | --
 allowUncheck | Boolean | false | 是否允许取消选中 | N
-disabled | Boolean | undefined | 是否禁用全部子单选框 | N
+disabled | Boolean | undefined | 是否禁用全部子单选框。优先级：Radio.disabled > RadioGroup.disabled > Form.disabled | N
 name | String | - | HTML 元素原生属性 | N
-options | Array | - | 单选组件按钮形式。RadioOption 数据类型为 string 或 number 时，表示 label 和 value 值相同。TS 类型：`Array<RadioOption>` `type RadioOption = string \| number \| RadioOptionObj` `interface RadioOptionObj { label?: string \| TNode; value?: string \| number; disabled?: boolean }`。[通用类型定义](https://github.com/Tencent/tdesign-vue/blob/develop/src/common.ts)。[详细类型定义](https://github.com/Tencent/tdesign-vue/tree/develop/src/radio/type.ts) | N
-theme | String | radio | 组件风格,可选项：radio/button。 | N
+options | Array | - | 单选组件按钮形式。RadioOption 数据类型为 string 或 number 时，表示 label 和 value 值相同。TS 类型：`Array<RadioOption>` `type RadioOption = string \| number \| RadioOptionObj` `interface RadioOptionObj { label?: string \| TNode; value?: string \| number \| boolean; disabled?: boolean }`。[通用类型定义](https://github.com/Tencent/tdesign-vue/blob/develop/src/common.ts)。[详细类型定义](https://github.com/Tencent/tdesign-vue/tree/develop/src/radio/type.ts) | N
+readonly | Boolean | undefined | 只读状态 | N
 size | String | medium | 组件尺寸【讨论中】。可选项：small/medium/large。TS 类型：`SizeEnum`。[通用类型定义](https://github.com/Tencent/tdesign-vue/blob/develop/src/common.ts) | N
-value | String / Number / Boolean | - | 选中的值。支持语法糖 `v-model`。TS 类型：`T` | N
-defaultValue | String / Number / Boolean | - | 选中的值。非受控属性。TS 类型：`T` | N
+theme | String | radio | 组件风格。可选项：radio/button | N
+value | String / Number / Boolean | - | 选中的值。支持语法糖 `v-model`。TS 类型：`T` `type RadioValue = string \| number \| boolean`。[详细类型定义](https://github.com/Tencent/tdesign-vue/tree/develop/src/radio/type.ts) | N
+defaultValue | String / Number / Boolean | - | 选中的值。非受控属性。TS 类型：`T` `type RadioValue = string \| number \| boolean`。[详细类型定义](https://github.com/Tencent/tdesign-vue/tree/develop/src/radio/type.ts) | N
 variant | String | outline | 单选组件按钮形式。可选项：outline/primary-filled/default-filled | N
-onChange | Function |  | TS 类型：`(value: T, context: { e: Event }) => void`<br/>选中值发生变化时触发 | N
+onChange | Function |  | TS 类型：`(value: T, context: { e: Event; name?:string }) => void`<br/>选中值发生变化时触发, `context.name` 指 RadioGroup 的 name 属性 | N
 
 ### RadioGroup Events
 
 名称 | 参数 | 描述
 -- | -- | --
-change | `(value: T, context: { e: Event })` | 选中值发生变化时触发
+change | `(value: T, context: { e: Event; name?:string })` | 选中值发生变化时触发, `context.name` 指 RadioGroup 的 name 属性
diff --git a/src/radio/radio.tsx b/src/radio/radio.tsx
index b858e77f6..9cc83ae27 100644
--- a/src/radio/radio.tsx
+++ b/src/radio/radio.tsx
@@ -81,13 +81,18 @@ export default mixins(Vue as VueConstructor<RadioParentInjectInstance>, classPre
       return Boolean((this.formDisabled || this.disabled) ?? this.radioGroup?.disabled);
     },
 
+    getReadonly() {
+      return Boolean(this.readonly ?? this.radioGroup?.readonly);
+    },
+
     onInputClick(e: MouseEvent) {
       e.stopPropagation();
     },
 
     handleRadioClick(e: MouseEvent) {
       const tDisabled = this.getDisabled();
-      if (tDisabled) return;
+      const tReadonly = this.getReadonly();
+      if (tDisabled || tReadonly) return;
       this.$emit('click', { e });
       this.checkRadio(e);
     },
@@ -100,7 +105,7 @@ export default mixins(Vue as VueConstructor<RadioParentInjectInstance>, classPre
 
       if (this.radioGroup) {
         const value = tChecked && allowUncheck ? undefined : this.value;
-        this.radioGroup.handleRadioChange(value, { e });
+        this.radioGroup.handleRadioChange(value, { e, name: this.radioGroup.name });
       } else {
         const value = allowUncheck ? !tChecked : true;
         emitEvent<Parameters<TdRadioProps['onChange']>>(this, 'change', value, { e });
diff --git a/src/radio/type.ts b/src/radio/type.ts
index 9783dda87..b985787d8 100644
--- a/src/radio/type.ts
+++ b/src/radio/type.ts
@@ -27,7 +27,7 @@ export interface TdRadioProps<T = RadioValue> {
    */
   default?: string | TNode;
   /**
-   * 是否为禁用态
+   * 是否为禁用态。如果存在父组件 RadioGroup，默认值由 RadioGroup.disabled 控制。优先级：Radio.disabled > RadioGroup.disabled > Form.disabled
    */
   disabled?: boolean;
   /**
@@ -39,6 +39,10 @@ export interface TdRadioProps<T = RadioValue> {
    * @default ''
    */
   name?: string;
+  /**
+   * 只读状态
+   */
+  readonly?: boolean;
   /**
    * 单选按钮的值
    */
@@ -60,7 +64,7 @@ export interface TdRadioGroupProps<T = RadioValue> {
    */
   allowUncheck?: boolean;
   /**
-   * 是否禁用全部子单选框
+   * 是否禁用全部子单选框。优先级：Radio.disabled > RadioGroup.disabled > Form.disabled
    */
   disabled?: boolean;
   /**
@@ -72,11 +76,20 @@ export interface TdRadioGroupProps<T = RadioValue> {
    * 单选组件按钮形式。RadioOption 数据类型为 string 或 number 时，表示 label 和 value 值相同
    */
   options?: Array<RadioOption>;
+  /**
+   * 只读状态
+   */
+  readonly?: boolean;
   /**
    * 组件尺寸【讨论中】
    * @default medium
    */
   size?: SizeEnum;
+  /**
+   * 组件风格
+   * @default radio
+   */
+  theme?: 'radio' | 'button';
   /**
    * 选中的值
    */
@@ -90,23 +103,18 @@ export interface TdRadioGroupProps<T = RadioValue> {
    * @default outline
    */
   variant?: 'outline' | 'primary-filled' | 'default-filled';
-
   /**
-   * 组件风格
-   */
-  theme?: 'radio' | 'button';
-  /**
-   * 选中值发生变化时触发
+   * 选中值发生变化时触发, `context.name` 指 RadioGroup 的 name 属性
    */
-  onChange?: (value: T, context: { e: Event }) => void;
+  onChange?: (value: T, context: { e: Event; name?: string }) => void;
 }
 
-export type RadioValue = string | number | boolean;
-
 export type RadioOption = string | number | RadioOptionObj;
 
 export interface RadioOptionObj {
   label?: string | TNode;
-  value?: string | number;
+  value?: string | number | boolean;
   disabled?: boolean;
 }
+
+export type RadioValue = string | number | boolean;