diff --git a/src/views/api/PhotoWall.vue b/src/views/api/PhotoWall.vue
index 9416621..3ec07c2 100644
--- a/src/views/api/PhotoWall.vue
+++ b/src/views/api/PhotoWall.vue
@@ -14,9 +14,9 @@
         auto-upload
         :show-file-list="false"
         style="margin-right: 10px;">
-        <el-button type="primary" icon="Upload" :loading="isUploading" v-permission="'photoWall:save'" plain>
-          上传图片
-        </el-button>
+        <el-tooltip :content="`图片格式为${allowUploadExt.join('、')}，文件大小不超过10MB。`">
+          <el-button type="primary" icon="Upload" :loading="isUploading" v-permission="'photoWall:save'" plain>上传图片</el-button>
+        </el-tooltip>
       </el-upload>
       <el-button
         v-if="selected.size > 0"
@@ -130,6 +130,7 @@ const apiBase = import.meta.env.VITE_APP_API_BASE
 const rootEl = ref<HTMLElement | null>(null)
 const photos = ref<PhotoWallModel[]>([])
 const isUploading = ref(false)
+const allowUploadExt = ['jpg', 'jpeg', 'png']
 
 class GalleryPage extends Page {
   constructor() { super(); this.limit = 50 }