diff --git a/IRaCIS.Core.Domain/Allocation/VisitTask.cs b/IRaCIS.Core.Domain/Allocation/VisitTask.cs
index e395e92e5..5e6c6af15 100644
--- a/IRaCIS.Core.Domain/Allocation/VisitTask.cs
+++ b/IRaCIS.Core.Domain/Allocation/VisitTask.cs
@@ -305,6 +305,8 @@ namespace IRaCIS.Core.Domain.Models
 
         public bool IsClinicalDataSign { get; set; }
 
+        //前序任务需要签名 但是未签名
+        public bool IsFrontTaskNeedSignButNotSign { get; set; }