diff --git a/src/uploader/index.js b/src/uploader/index.js
index d56416cf9..909bcbcf7 100644
--- a/src/uploader/index.js
+++ b/src/uploader/index.js
@@ -320,7 +320,11 @@ export default createComponent({
         </div>
       );
 
-      const PreviewCoverContent = this.slots('preview-cover', item);
+      const PreviewCoverContent = this.slots('preview-cover', {
+        index,
+        ...item,
+      });
+
       const PreviewCover = PreviewCoverContent && (
         <div class={bem('preview-cover')}>{PreviewCoverContent}</div>
       );
diff --git a/src/uploader/test/__snapshots__/index.spec.js.snap b/src/uploader/test/__snapshots__/index.spec.js.snap
index 172c43fc9..6421e923c 100644
--- a/src/uploader/test/__snapshots__/index.spec.js.snap
+++ b/src/uploader/test/__snapshots__/index.spec.js.snap
@@ -76,7 +76,7 @@ exports[`preview-cover slot 1`] = `
       <div class="van-image van-uploader__preview-image"><img src="https://img.yzcdn.cn/vant/cat.jpeg" class="van-image__img" style="object-fit: cover;">
         <div class="van-image__loading"><i class="van-icon van-icon-photo van-image__loading-icon">
             <!----></i></div>
-        <div class="van-uploader__preview-cover">https://img.yzcdn.cn/vant/cat.jpeg</div>
+        <div class="van-uploader__preview-cover">url: https://img.yzcdn.cn/vant/cat.jpeg, index: 0</div>
       </div>
       <div class="van-uploader__preview-delete"><i class="van-icon van-icon-cross van-uploader__preview-delete-icon">
           <!----></i></div>
@@ -85,7 +85,7 @@ exports[`preview-cover slot 1`] = `
       <div class="van-image van-uploader__preview-image"><img src="https://img.yzcdn.cn/vant/cat.jpeg" class="van-image__img" style="object-fit: cover;">
         <div class="van-image__loading"><i class="van-icon van-icon-photo van-image__loading-icon">
             <!----></i></div>
-        <div class="van-uploader__preview-cover">https://img.yzcdn.cn/vant/cat.jpeg</div>
+        <div class="van-uploader__preview-cover">url: https://img.yzcdn.cn/vant/cat.jpeg, index: 1</div>
       </div>
       <div class="van-uploader__preview-delete"><i class="van-icon van-icon-cross van-uploader__preview-delete-icon">
           <!----></i></div>
diff --git a/src/uploader/test/index.spec.js b/src/uploader/test/index.spec.js
index 76ab58f30..d9ae2f77d 100644
--- a/src/uploader/test/index.spec.js
+++ b/src/uploader/test/index.spec.js
@@ -531,7 +531,7 @@ test('preview-cover slot', () => {
       fileList: [{ url: IMAGE }, { url: IMAGE }],
     },
     scopedSlots: {
-      'preview-cover': (item) => item.url,
+      'preview-cover': (item) => `url: ${item.url}, index: ${item.index}`,
     },
   });