diff --git a/app/adminapi/controller/device/DeviceController.php b/app/adminapi/controller/device/DeviceController.php
index e188bf5..f5254c3 100644
--- a/app/adminapi/controller/device/DeviceController.php
+++ b/app/adminapi/controller/device/DeviceController.php
@@ -133,7 +133,7 @@ class DeviceController extends BaseAdminController
     {
             $iccid = $this->request->param('iccid', '');
             $deviceId = $this->request->param('deviceId', '');
-            if (!$deviceId) {
+            if (!empty($deviceId)) {
                 // 判断设备编码是否被使用
                 $device = Device::where('code', $deviceId)->find();
                 if ($device) {