diff --git a/app/Exports/AdminNoticeExport.php b/app/Exports/AdminNoticeExport.php
index e22c21d..4850c78 100644
--- a/app/Exports/AdminNoticeExport.php
+++ b/app/Exports/AdminNoticeExport.php
@@ -22,7 +22,9 @@ class AdminNoticeExport implements FromArray, WithHeadings
             'space_id',
             'msg_content'
         ];
-        AdminNotice::all($columns)->each(
+        AdminNotice::query()->orderBy('id', 'desc')->limit(500)->select(
+            $columns
+        )->get()->each(
             function ($item) use (&$data, &$index) {
                 $oldItem = (new AdminNoticeService(
                     new OperationLogService()