diff --git a/plugin/piadmin/app/controller/v1/AttachmentController.php b/plugin/piadmin/app/controller/v1/AttachmentController.php
index 4cde565..9e1cedd 100644
--- a/plugin/piadmin/app/controller/v1/AttachmentController.php
+++ b/plugin/piadmin/app/controller/v1/AttachmentController.php
@@ -26,6 +26,13 @@ class AttachmentController extends BaseController
     public function upload()
     {
         $file = request()->file('file');
+        if (is_array($file)) {
+            $oss_files = [];
+            foreach ($file as $item) {
+                $oss_files[] = $this->service->upload($item);
+            }
+            return success($oss_files);
+        }
         return success($this->service->upload($file));
     }