diff --git a/application/common/controller/Backend.php b/application/common/controller/Backend.php
index fa6e7905..5d745370 100644
--- a/application/common/controller/Backend.php
+++ b/application/common/controller/Backend.php
@@ -507,7 +507,7 @@ class Backend extends Controller
         }
         $order = [];
         foreach ($orderby as $k => $v) {
-            $order[$v[0]] = $v[1];
+            $order[$v[0]] = strtoupper($v[1] ?? '') === 'DESC' ? 'DESC' : 'ASC';
         }
         $field = $field ? $field : 'name';