diff --git a/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs b/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs
index 127190b5..628c5058 100644
--- a/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs
+++ b/Tiobon.Core.Services/Ghre/Ghre_ExamPaperServices.cs
@@ -5,10 +5,12 @@ using System.Text.RegularExpressions;
 using AgileObjects.AgileMapper;
 using Microsoft.AspNetCore.Http;
 using MongoDB.Driver.Linq;
+using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using SqlSugar;
 using Tiobon.Core.Common;
 using Tiobon.Core.Common.Caches;
+using Tiobon.Core.Common.Helper;
 using Tiobon.Core.Common.UserManager;
 using Tiobon.Core.IRepository.Base;
 using Tiobon.Core.IServices;
@@ -663,7 +665,7 @@ namespace Tiobon.Core.Services
 delete from Ghre_ExamPaperQuestion WHERE ExamPaperId='{id}';");
 
                 var insert = new EditGhre_ExamPaperInput();
-
+                var paper = await base.QueryById(id);
                 insert = Mapper.Map(insertModel.baseData).ToANew<EditGhre_ExamPaperInput>();
                 insert.PaperNo = await GenerateContinuousSequence("Ghre_ExamPaper", "PaperNo", "P");
                 insert.LinkId = insertModel.baseData.LinkType == "CourseId" ? insertModel.baseData.CourseId : insertModel.baseData.CourseSceneId;
@@ -673,6 +675,24 @@ delete from Ghre_ExamPaperQuestion WHERE ExamPaperId='{id}';");
                 insert.SetMethod = insertModel.examPaperSetType;
                 insert.Status = "Draft";
 
+
+                #region 串联试卷和课程关系
+                if (
+                    (insert.LinkType == "CourseId" && insert.LinkType == paper.LinkType && paper.LinkId != insert.LinkId) ||
+                    (insert.LinkType == "CourseSceneId" && insert.LinkType != paper.LinkType)
+                    )
+                {
+                    var courses = await _ghre_CourseServices.Query(x =>x.Id == paper.LinkId &&  x.ExamPaperId.Contains(id.ObjToString()));
+                    courses.ForEach(async x =>
+                    {
+                        var ids = JsonHelper.JsonToObj<List<long?>>(x.ExamPaperId);
+                        ids = ids.Where(o => o != id).ToList();
+                        x.ExamPaperId = JsonHelper.ObjToJson(ids);
+                        await Db.Updateable(x).UpdateColumns(it => new { it.ExamPaperId }).ExecuteCommandAsync();
+                    });
+                }
+                #endregion
+
                 await Update(id, insert);
                 var configs = Mapper.Map(insertModel.examPaperSetData).ToANew<List<Ghre_ExamPaperConfig>>();
                 configs.ForEach(x => x.ExamPaperId = id);