diff --git a/application/admin/controller/Cars.php b/application/admin/controller/Cars.php
index 5ba1505..bbdfa29 100644
--- a/application/admin/controller/Cars.php
+++ b/application/admin/controller/Cars.php
@@ -217,6 +217,7 @@ class Cars extends Backend
 //        dd($data);
         foreach ($data as $datum){
             if (isset($params[$datum['field_key']])){
+                if (empty($params[$datum['field_key']])) continue;
                 $insert [] = [
                     'car_id' => $car_id,
                     'attribute_id' => $datum->id,