diff --git a/packages/vant/src/overlay/index.ts b/packages/vant/src/overlay/index.ts
index e4d3f410c..f05212d49 100644
--- a/packages/vant/src/overlay/index.ts
+++ b/packages/vant/src/overlay/index.ts
@@ -3,3 +3,4 @@ import _Overlay from './Overlay';
 
 export const Overlay = withInstall(_Overlay);
 export default Overlay;
+export type { OverlayProps } from './Overlay';