diff --git a/IRaCIS.Core.Application/Service/Reading/Segment/SegmentationService.cs b/IRaCIS.Core.Application/Service/Reading/Segment/SegmentationService.cs
index adc7e8102..07508b76f 100644
--- a/IRaCIS.Core.Application/Service/Reading/Segment/SegmentationService.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Segment/SegmentationService.cs
@@ -12,6 +12,8 @@ using IRaCIS.Core.Infrastructure.Extention;
 using System.Threading.Tasks;
 using IRaCIS.Core.Infra.EFCore;
 using Microsoft.Extensions.Logging;
+using Microsoft.EntityFrameworkCore;
+
 namespace IRaCIS.Core.Application.Service;
 	
 /// <summary>
@@ -85,6 +87,7 @@ public class SegmentationService(IRepository<Segmentation> _segmentationReposito
     [HttpDelete("{segmentationId:guid}")]
     public async Task<IResponseOutput> DeleteSegmentation(Guid segmentationId)
 	{
+            await DeleteBindingsAndAnswersAsync(segmentationId, null);
 			var success = await _segmentationRepository.DeleteFromQueryAsync(t => t.Id == segmentationId,true);
             return ResponseOutput.Ok();
 	}
@@ -138,6 +141,7 @@ public class SegmentationService(IRepository<Segmentation> _segmentationReposito
     [HttpDelete("{segmentId:guid}")]
     public async Task<IResponseOutput> DeleteSegment(Guid segmentId)
     {
+        await DeleteBindingsAndAnswersAsync(null, segmentId);
         var success = await _segmentRepository.DeleteFromQueryAsync(t => t.Id == segmentId, true);
         return ResponseOutput.Ok();
     }
@@ -309,6 +313,44 @@ public class SegmentationService(IRepository<Segmentation> _segmentationReposito
         return ResponseOutput.Ok();
     }
 
+    /// <summary>
+    /// 删除分割组和分割时的关联数据删除逻辑
+    /// </summary>
+    /// <param name="segmentationId"></param>
+    /// <param name="segmentId"></param>
+    /// <returns></returns>
+    private async Task DeleteBindingsAndAnswersAsync(Guid? segmentationId, Guid? segmentId)
+    {
+        var bindingsQuery = _segmentBindingRepository
+            .WhereIf(segmentationId != null, x => x.SegmentationId == segmentationId)
+            .WhereIf(segmentId != null, x => x.SegmentId == segmentId);
+            
+        var bindings = await bindingsQuery.ToListAsync();
+
+        foreach (var binding in bindings)
+        {
+            // 处理问题
+            if (binding.RowId != null && binding.TableQuestionId != null)
+            {
+                await _readingTableQuestionAnswerRepository.DeleteFromQueryAsync(x => x.VisitTaskId == binding.VisitTaskId && x.RowId == binding.RowId && x.TableQuestionId == binding.TableQuestionId);
+            }
+            else if (binding.QuestionId != null)
+            {
+                await _readingTaskQuestionAnswerRepository.DeleteFromQueryAsync(x => x.VisitTaskId == binding.VisitTaskId && x.ReadingQuestionTrialId == binding.QuestionId);
+            }
+        }
+
+        // 处理绑定关系
+        if (segmentationId != null)
+        {
+            await _segmentBindingRepository.DeleteFromQueryAsync(x => x.SegmentationId == segmentationId);
+        }
+        else if (segmentId != null)
+        {
+            await _segmentBindingRepository.DeleteFromQueryAsync(x => x.SegmentId == segmentId);
+        }
+    }
+
 }