diff --git a/src/uni_modules/wot-design-uni/components/wd-upload/types.ts b/src/uni_modules/wot-design-uni/components/wd-upload/types.ts
index 6cc93d9f..fe0f60a3 100644
--- a/src/uni_modules/wot-design-uni/components/wd-upload/types.ts
+++ b/src/uni_modules/wot-design-uni/components/wd-upload/types.ts
@@ -215,7 +215,7 @@ export const uploadProps = {
    * 类型：object
    * 默认值：{}
    */
-  formData: { type: Object as PropType<UploadFormData>, default: () => {} },
+  formData: { type: Object as PropType<UploadFormData>, default: () => ({}) },
   /**
    * 预览失败执行操作
    * 类型：function({index,imgList})