diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
index 7bfb2b981..2ac38621e 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
@@ -261,6 +261,10 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
         public Guid TrialId { get; set; }
     }
 
+    public class CopyTableAnswerRowInfo : ReadingTableAnswerRowInfo
+    {
+        public Guid OriginalId { get; set; }
+    }
     public class CopyTableAnswerDto
     {
         public decimal RowIndex { get; set; }
diff --git a/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs b/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs
index 841507992..dd9a93b3a 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadingCalculateService.cs
@@ -823,7 +823,7 @@ namespace IRaCIS.Core.Application.Service
 			var thisNum = await _subjectVisitRepository.Where(x => x.Id == inDto.SubjectVisitId).Select(x => x.VisitNum).FirstOrDefaultAsync();
 
 			// 先找到上一个访视
-			var lastVisitId = await _subjectVisitRepository.Where(x => x.SubjectId == inDto.SubjectId && x.VisitNum < thisNum).OrderByDescending(x => x.VisitNum).Select(x => x.Id).FirstOrDefaultAsync();
+			var lastVisitId = await _subjectVisitRepository.Where(x => x.SubjectId == inDto.SubjectId && !x.IsLostVisit && x.VisitNum < thisNum).OrderByDescending(x => x.VisitNum).Select(x => x.Id).FirstOrDefaultAsync();
 
 			// 找到访视任务Id
 
diff --git a/IRaCIS.Core.Application/Service/Reading/ReadingImageTaskService.cs b/IRaCIS.Core.Application/Service/Reading/ReadingImageTaskService.cs
index 0f01da641..1fd4df7db 100644
--- a/IRaCIS.Core.Application/Service/Reading/ReadingImageTaskService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/ReadingImageTaskService.cs
@@ -124,6 +124,7 @@ namespace IRaCIS.Application.Services
           
             rowAnswer.RowIndex = newRowIndex;
             rowAnswer.MergeRowId = null;
+            rowAnswer.SplitOrMergeType = SplitOrMergeType.Split;
             rowAnswer.SplitRowId = rowAnswer.Id;
             rowAnswer.Id = NewId.NextGuid();
             tableAnswers.ForEach(x =>
@@ -146,11 +147,11 @@ namespace IRaCIS.Application.Services
         {
             await this.VerifyIsBaseLineTask(inDto.VisitTaskId);
 
-            var rowsInfo = await _readingTableAnswerRowInfoRepository.Where(x => x.VisitTaskId == inDto.VisitTaskId && x.QuestionId == inDto.QuestionId&&(x.RowIndex == inDto.MainRowIndex || x.RowIndex == inDto.MergeRowIndex)).ToListAsync();
+            var rowsInfo = await _readingTableAnswerRowInfoRepository.Where(x => x.VisitTaskId == inDto.VisitTaskId &&(x.RowIndex == inDto.MainRowIndex || x.RowIndex == inDto.MergeRowIndex)).ToListAsync();
 
             if (rowsInfo.Count() != 2)
             {
-                throw new BusinessValidationFailedException("合并的病灶并非同一个病灶类型");
+                throw new BusinessValidationFailedException("合并的病灶并非同一个访视任务");
             }
 
 
@@ -161,6 +162,7 @@ namespace IRaCIS.Application.Services
             await _readingTableAnswerRowInfoRepository.UpdatePartialFromQueryAsync(mergeid, x => new ReadingTableAnswerRowInfo()
             {
                 MergeRowId = minaid,
+                SplitOrMergeType = SplitOrMergeType.Merge,
             });
 
             await _readingTableAnswerRowInfoRepository.SaveChangesAsync();
@@ -330,10 +332,17 @@ namespace IRaCIS.Application.Services
                 // 判断当前任务是是否有表格问题答案
                 if (!(await _readingTableQuestionAnswerRepository.AnyAsync(x => x.VisitTaskId == visitTaskId)))
                 {
-                    // 找到基线的任务Id
-                    var baseLineTaskId = await _visitTaskRepository.Where(x => x.SourceSubjectVisitId == baseLineVisitId && x.TaskState == TaskState.Effect && x.ArmEnum == taskinfo.ArmEnum).Select(x => x.Id).FirstOrDefaultAsync();
 
-                    var copyTableAnswers = await _readingTableQuestionAnswerRepository.Where(x => x.VisitTaskId == baseLineTaskId).Select(x => new CopyTableAnswerDto() {
+
+
+               
+
+                    var LastVisitTaskId = await _visitTaskRepository.Where(x => x.ReadingCategory == ReadingCategory.Visit &&x.VisitTaskNum< taskinfo.VisitTaskNum&&x.TaskState==TaskState.Effect&&x.ArmEnum==taskinfo.ArmEnum
+                    ).OrderByDescending(x=>x.VisitTaskNum).Select(x => x.Id).FirstOrDefaultAsync();
+
+                  
+
+                    var copyTableAnswers = await _readingTableQuestionAnswerRepository.Where(x => x.VisitTaskId == LastVisitTaskId).Select(x => new CopyTableAnswerDto() {
                         Answer = x.Answer,
                         QuestionId = x.QuestionId,
                         QuestionMark = x.ReadingTableQuestionTrial.QuestionMark,
@@ -342,21 +351,21 @@ namespace IRaCIS.Application.Services
                         TrialId = x.TrialId
                     }).ToListAsync();
 
-                    var tableRowAnswers = await _readingTableAnswerRowInfoRepository.Where(x => x.VisitTaskId == baseLineTaskId).Select(x => new ReadingTableAnswerRowInfo() {
+                    var tableRowAnswers = await _readingTableAnswerRowInfoRepository.Where(x => x.VisitTaskId == LastVisitTaskId).ProjectTo<CopyTableAnswerRowInfo>(_mapper.ConfigurationProvider).ToListAsync();
 
-                        IsCurrentTaskAdd = false,
-                        QuestionId = x.QuestionId,
-                        RowIndex = x.RowIndex,
-                        TrialId = x.TrialId,
-                        VisitTaskId = visitTaskId,
-                    }).ToListAsync();
 
                     tableRowAnswers.ForEach(x =>
                     {
-                        x.IsCurrentTaskAdd = false;
+                      
                         x.Id = NewId.NextGuid();
                     });
 
+                    tableRowAnswers.ForEach(x =>
+                    {
+                        x.SplitRowId = tableRowAnswers.Where(y => y.OriginalId == x.SplitRowId).Select(y => y.Id).FirstOrDefault();
+                        x.MergeRowId = tableRowAnswers.Where(y => y.OriginalId == x.MergeRowId).Select(y => y.Id).FirstOrDefault();
+                    });
+
                     List<QuestionMark?> notNeedCopyMarks = new List<QuestionMark?>()
                     {
                          QuestionMark.MajorAxis,
diff --git a/IRaCIS.Core.Application/Service/Reading/_MapConfig.cs b/IRaCIS.Core.Application/Service/Reading/_MapConfig.cs
index 4e8cdaa5a..ffbae29b3 100644
--- a/IRaCIS.Core.Application/Service/Reading/_MapConfig.cs
+++ b/IRaCIS.Core.Application/Service/Reading/_MapConfig.cs
@@ -52,6 +52,9 @@ namespace IRaCIS.Core.Application.Service
 
             CreateMap<TumorAssessment, TumorAssessmentView>();
 
+            CreateMap<ReadingTableAnswerRowInfo, CopyTableAnswerRowInfo>()
+                .ForMember(d => d.OriginalId, u => u.MapFrom(s => s.Id));
+
             #region 阅片问题
 
             // 忽略列
diff --git a/IRaCIS.Core.Domain.Share/Reading/ReadEnum.cs b/IRaCIS.Core.Domain.Share/Reading/ReadEnum.cs
index 6b92ec5d7..c53d84cf0 100644
--- a/IRaCIS.Core.Domain.Share/Reading/ReadEnum.cs
+++ b/IRaCIS.Core.Domain.Share/Reading/ReadEnum.cs
@@ -16,6 +16,23 @@ namespace IRaCIS.Core.Domain.Share
         public static readonly string Group = "group";
     }
 
+    /// <summary>
+    /// 病灶分裂或合并
+    /// </summary>
+    public enum SplitOrMergeType
+    {
+
+        /// <summary>
+        /// 分裂
+        /// </summary>
+        Split = 0,
+
+        /// <summary>
+        /// 合并
+        /// </summary>
+        Merge = 1
+    }
+
     /// <summary>
     /// 是否存在或者NA
     /// </summary>
diff --git a/IRaCIS.Core.Domain/Reading/ReadingTableAnswerRowInfo.cs b/IRaCIS.Core.Domain/Reading/ReadingTableAnswerRowInfo.cs
index 47b2357f8..ee0037c3e 100644
--- a/IRaCIS.Core.Domain/Reading/ReadingTableAnswerRowInfo.cs
+++ b/IRaCIS.Core.Domain/Reading/ReadingTableAnswerRowInfo.cs
@@ -72,6 +72,9 @@ namespace IRaCIS.Core.Domain.Models
 		/// </summary>
 		public Guid? MergeRowId { get; set; }
 
+
+		public SplitOrMergeType? SplitOrMergeType { get; set; }
+
 		/// <summary>
 		/// CreateUserId
 		/// </summary>