diff --git a/packages/uploader/index.wxml b/packages/uploader/index.wxml
index a57cfda2..139b892b 100644
--- a/packages/uploader/index.wxml
+++ b/packages/uploader/index.wxml
@@ -17,14 +17,14 @@
           src="{{ item.url || item.path }}"
           alt="{{ item.name || ('图片' + index) }}"
           class="van-uploader__preview-image"
-          style="width: {{ computedPreviewSize }}px; height: {{ computedPreviewSize }}px;"
+          style="width: {{ computedPreviewSize }}; height: {{ computedPreviewSize }};"
           data-url="{{ item.url || item.path }}"
           bind:tap="doPreviewImage"
         />
         <view
           wx:else
           class="van-uploader__file"
-          style="width: {{ computedPreviewSize }}px; height: {{ computedPreviewSize }}px;"
+          style="width: {{ computedPreviewSize }}; height: {{ computedPreviewSize }};"
         >
           <van-icon name="description" class="van-uploader__file-icon" />
           <view class="van-uploader__file-name van-ellipsis">{{ item.name || item.url || item.path }}</view>
@@ -48,7 +48,7 @@
         <!-- 默认上传样式 -->
         <view
           class="van-uploader__upload"
-          style="width: {{ computedPreviewSize }}px; height: {{ computedPreviewSize }}px;"
+          style="width: {{ computedPreviewSize }}; height: {{ computedPreviewSize }};"
           bind:tap="startUpload"
         >
           <van-icon name="plus" class="van-uploader__upload-icon" />