diff --git a/packages/uni-api/src/protocols/media/chooseImage.ts b/packages/uni-api/src/protocols/media/chooseImage.ts
index 847149a2361e60bbc351624ae697245cfc8fbb62..fd8eeb17083b7971b52381d00be670a42f6c816d 100644
--- a/packages/uni-api/src/protocols/media/chooseImage.ts
+++ b/packages/uni-api/src/protocols/media/chooseImage.ts
@@ -23,7 +23,7 @@ export const ChooseImageOptions: ApiOptions<API_TYPE_CHOOSE_IMAGE> = {
       if (extension instanceof Array && extension.length === 0) {
         return 'param extension should not be empty.'
       }
-      if (!extension) params.extension = ['']
+      if (!extension) params.extension = ['*']
     },
   },
 }