diff --git a/src/uploader/README.md b/src/uploader/README.md
index a39fbffa6..a7279ec6f 100644
--- a/src/uploader/README.md
+++ b/src/uploader/README.md
@@ -127,7 +127,7 @@ import { Toast } from 'vant';
 
 export default {
   methods: {
-    isOverSize() {
+    isOverSize(file) {
       const maxSize = file.type === 'image/jpeg' ? 500 * 1024 : 1000 * 1024;
       return file.size >= maxSize;
     },
diff --git a/src/uploader/README.zh-CN.md b/src/uploader/README.zh-CN.md
index c3800a607..964fb0535 100644
--- a/src/uploader/README.zh-CN.md
+++ b/src/uploader/README.zh-CN.md
@@ -147,7 +147,7 @@ import { Toast } from 'vant';
 
 export default {
   methods: {
-    isOverSize() {
+    isOverSize(file) {
       const maxSize = file.type === 'image/jpeg' ? 500 * 1024 : 1000 * 1024;
       return file.size >= maxSize;
     },