diff --git a/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs b/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
index 4b132c09a..5c2392e45 100644
--- a/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Allocation/VisitTaskService.cs
@@ -2260,7 +2260,7 @@ public class VisitTaskService(IRepository<VisitTask> _visitTaskRepository,
 
         //ReadingTableAnswerRowInfo  ReadingTableQuestionAnswer 一起加
         var readingTableAnswerRowInfoList = _readingTableAnswerRowInfoRepository.Where(t => t.VisitTaskId == origenalTask.Id).Include(t => t.LesionAnswerList).ToList();
-        Dictionary<Guid?, Guid> lesionRelationship = new Dictionary<Guid?, Guid>() { };
+        Dictionary<Guid, Guid> lesionRelationship = new Dictionary<Guid, Guid>() { };
         foreach (var item in readingTableAnswerRowInfoList)
         {
 
@@ -2292,14 +2292,14 @@ public class VisitTaskService(IRepository<VisitTask> _visitTaskRepository,
 
         foreach (var item in readingTableAnswerRowInfoList)
         {
-            if (lesionRelationship.ContainsKey(item.SplitRowId))
+            if (item.SplitRowId!=null&&lesionRelationship.ContainsKey(item.SplitRowId.Value))
             {
-                item.SplitRowId = lesionRelationship[item.SplitRowId];
+                item.SplitRowId = lesionRelationship[item.SplitRowId.Value];
             }
 
-            if (lesionRelationship.ContainsKey(item.MergeRowId))
+            if (item.MergeRowId!=null&&lesionRelationship.ContainsKey(item.MergeRowId.Value))
             {
-                item.MergeRowId = lesionRelationship[item.MergeRowId];
+                item.MergeRowId = lesionRelationship[item.MergeRowId.Value];
             }
         }