diff --git a/components/radio/context.tsx b/components/radio/context.ts
similarity index 100%
rename from components/radio/context.tsx
rename to components/radio/context.ts
diff --git a/components/radio/index.tsx b/components/radio/index.ts
similarity index 100%
rename from components/radio/index.tsx
rename to components/radio/index.ts
diff --git a/components/radio/interface.tsx b/components/radio/interface.ts
similarity index 100%
rename from components/radio/interface.tsx
rename to components/radio/interface.ts
diff --git a/components/radio/radioButton.tsx b/components/radio/radioButton.tsx
index 1cdf3b6a94..2a42c95840 100644
--- a/components/radio/radioButton.tsx
+++ b/components/radio/radioButton.tsx
@@ -1,4 +1,5 @@
 import * as React from 'react';
+import type { CheckboxRef } from '../checkbox';
 import type { AbstractCheckboxProps } from '../checkbox/Checkbox';
 import { ConfigContext } from '../config-provider';
 import { RadioOptionTypeContextProvider } from './context';
@@ -7,17 +8,17 @@ import Radio from './radio';
 
 export type RadioButtonProps = AbstractCheckboxProps<RadioChangeEvent>;
 
-const RadioButton = (props: RadioButtonProps, ref: React.Ref<any>) => {
+const RadioButton: React.ForwardRefRenderFunction<CheckboxRef, RadioButtonProps> = (props, ref) => {
   const { getPrefixCls } = React.useContext(ConfigContext);
 
   const { prefixCls: customizePrefixCls, ...radioProps } = props;
   const prefixCls = getPrefixCls('radio', customizePrefixCls);
 
   return (
-    <RadioOptionTypeContextProvider value="button">
-      <Radio prefixCls={prefixCls} {...radioProps} type="radio" ref={ref} />
+    <RadioOptionTypeContextProvider value='button'>
+      <Radio prefixCls={prefixCls} {...radioProps} type='radio' ref={ref} />
     </RadioOptionTypeContextProvider>
   );
 };
 
-export default React.forwardRef(RadioButton);
+export default React.forwardRef<CheckboxRef, RadioButtonProps>(RadioButton);