diff --git a/packages/vant/src/uploader/demo/index.vue b/packages/vant/src/uploader/demo/index.vue
index 2843a8c96..f03ca5b5b 100644
--- a/packages/vant/src/uploader/demo/index.vue
+++ b/packages/vant/src/uploader/demo/index.vue
@@ -56,7 +56,7 @@ const fileList3 = ref([]);
 
 const fileList4 = ref([{ url: 'https://img.yzcdn.cn/vant/sand.jpg' }]);
 
-const fileList5 = ref([
+const fileList5 = ref<UploaderFileListItem[]>([
   { url: 'https://img.yzcdn.cn/vant/leaf.jpg' },
   {
     url: 'https://img.yzcdn.cn/vant/sand.jpg',
@@ -73,7 +73,7 @@ const fileList5 = ref([
   },
 ]);
 
-const statusFileList = ref([
+const statusFileList = ref<UploaderFileListItem[]>([
   {
     url: 'https://img.yzcdn.cn/vant/leaf.jpg',
     status: 'uploading',
@@ -86,16 +86,19 @@ const statusFileList = ref([
   },
 ]);
 
-const previewCoverFiles = ref([
+const previewCoverFiles = ref<UploaderFileListItem[]>([
   {
     url: 'https://img.yzcdn.cn/vant/leaf.jpg',
     file: {
       name: t('imageName'),
-    },
+    } as File,
   },
 ]);
 
-const beforeRead = (file: File) => {
+const beforeRead = (file: File | File[]) => {
+  if (Array.isArray(file)) {
+    return true;
+  }
   if (file.type !== 'image/jpeg') {
     Toast(t('invalidType'));
     return false;
@@ -103,11 +106,14 @@ const beforeRead = (file: File) => {
   return true;
 };
 
-const afterRead = (file: UploaderFileListItem, detail: unknown) => {
+const afterRead = (
+  file: UploaderFileListItem | UploaderFileListItem[],
+  detail: unknown
+) => {
   console.log(file, detail);
 };
 
-const afterReadFailed = (item: UploaderFileListItem) => {
+const setItemLoading = (item: UploaderFileListItem) => {
   item.status = 'uploading';
   item.message = t('uploading');
 
@@ -117,6 +123,16 @@ const afterReadFailed = (item: UploaderFileListItem) => {
   }, 1000);
 };
 
+const afterReadFailed = (
+  item: UploaderFileListItem | UploaderFileListItem[]
+) => {
+  if (Array.isArray(item)) {
+    item.forEach(setItemLoading);
+  } else {
+    setItemLoading(item);
+  }
+};
+
 const onOversize = (file: UploaderFileListItem, detail: unknown) => {
   console.log(file, detail);
   Toast(t('overSizeTip'));
diff --git a/packages/vant/src/uploader/types.ts b/packages/vant/src/uploader/types.ts
index 5b8530918..883181ce3 100644
--- a/packages/vant/src/uploader/types.ts
+++ b/packages/vant/src/uploader/types.ts
@@ -20,15 +20,13 @@ export type UploaderFileListItem = {
 
 export type UploaderMaxSize = number | string | ((file: File) => boolean);
 
-type PromiseOrNot<T> = T | Promise<T>;
-
 export type UploaderBeforeRead = (
   file: File | File[],
   detail: {
     name: string | number;
     index: number;
   }
-) => PromiseOrNot<File | File[] | undefined>;
+) => boolean | Promise<File | File[] | undefined>;
 
 export type UploaderAfterRead = (
   items: UploaderFileListItem | UploaderFileListItem[],
diff --git a/packages/vant/src/utils/interceptor.ts b/packages/vant/src/utils/interceptor.ts
index 6644642d1..87b5c813f 100644
--- a/packages/vant/src/utils/interceptor.ts
+++ b/packages/vant/src/utils/interceptor.ts
@@ -3,7 +3,7 @@ import { isPromise } from './validate';
 
 export type Interceptor = (
   ...args: any[]
-) => Promise<boolean> | boolean | undefined;
+) => Promise<boolean> | boolean | undefined | void;
 
 export function callInterceptor(
   interceptor: Interceptor | undefined,