diff --git a/app/Http/Controllers/DeviceController.php b/app/Http/Controllers/DeviceController.php
index dae32a2..fc9f140 100644
--- a/app/Http/Controllers/DeviceController.php
+++ b/app/Http/Controllers/DeviceController.php
@@ -89,6 +89,8 @@ class DeviceController extends Controller
             $baseIds = AgriculturalBase::where('parent_id', $parent)->pluck('id')->toArray();
             if(count($baseIds) > 0){
                 $query->whereIn('agricultural_base_id', $baseIds);
+            }else{
+                $query->where('agricultural_base_id', 0);
             }
         }
         //如果查了镇街就不查指定基地了