diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/OrganInfoViewModel.cs b/IRaCIS.Core.Application/Service/Reading/Dto/OrganInfoViewModel.cs
index f281d84ed..daec6d9de 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/OrganInfoViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/OrganInfoViewModel.cs
@@ -29,7 +29,7 @@ namespace IRaCIS.Core.Application.ViewModel
     ///<summary> CriterionNidusAddOrEdit  列表查询参数模型</summary>
     public class CriterionNidusAddOrEdit
     {
-        public Guid Id { get; set; }
+        public Guid? Id { get; set; }
         public Guid CriterionId { get; set; }
         public string NidusType { get; set; }
         public string NidusTypeCN { get; set; }