diff --git a/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs b/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs
index 9522f55..6db5b2e 100644
--- a/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs
+++ b/Repository/BackendRepository/Implement/NiagaraDataSynchronizeRepository.cs
@@ -229,6 +229,18 @@ namespace Repository.BackendRepository.Implement
                         //新增至device, is_link = 1
                         if (result.Count > 0)
                         {
+                            var result2 = result.GroupBy(x => new
+                            {
+                                device_building_tag2 = x.device_building_tag,
+                                device_system_tag2 = x.device_system_tag,
+                                device_name_tag2 = x.device_name_tag
+                            }).Select(x => new Device_item8
+                            {
+                                device_building_tag = x.Key.device_building_tag2,
+                                device_system_tag = x.Key.device_system_tag2,
+                                device_name_tag = x.Key.device_name_tag2
+                            });
+
                             foreach (var data in result)
                             {
                                 sb.Append($@" insert device(device_guid, deleted, status, priority, is_link, device_area_tag, 
@@ -246,7 +258,9 @@ namespace Repository.BackendRepository.Implement
                                         data.device_serial_tag + "', '" +
                                         data.niagara_tags + "', '" +
                                         data.device_system_tag + "', now(), now() );");
-
+                            }
+                            foreach (var data in result)
+                            {
                                 sb2.Append($@"INSERT device_kind (device_kind_guid, device_building_tag, device_system_tag, device_name_tag, 
                                     device_normal_flashing, device_close_flashing, device_error_flashing, device_error_independent, 
                                     created_by, created_at)