diff --git a/packages/vant/src/uploader/utils.ts b/packages/vant/src/uploader/utils.ts
index 0db08b5fe..8057b9b16 100644
--- a/packages/vant/src/uploader/utils.ts
+++ b/packages/vant/src/uploader/utils.ts
@@ -63,7 +63,7 @@ export function filterFiles(
   return { valid, invalid };
 }
 
-const IMAGE_REGEXP = /\.(jpeg|jpg|gif|png|svg|webp|jfif|bmp|dpg)/i;
+const IMAGE_REGEXP = /\.(jpeg|jpg|gif|png|svg|webp|jfif|bmp|dpg|avif)/i;
 
 export const isImageUrl = (url: string): boolean => IMAGE_REGEXP.test(url);