diff --git a/YD_Event.Application/Event/Dtos/EventDtos.cs b/YD_Event.Application/Event/Dtos/EventDtos.cs
index 85d20d4..7eea00f 100644
--- a/YD_Event.Application/Event/Dtos/EventDtos.cs
+++ b/YD_Event.Application/Event/Dtos/EventDtos.cs
@@ -553,6 +553,11 @@ public class EventDetailOutput : AddEventInput
     /// 退款规则详情列表
     /// </summary>
     public List<RefundRuleDto>? RefundRules { get; set; }
+
+    /// <summary>
+    /// 是否可以编辑项目信息（有报名记录时不能编辑项目和组别
+    /// </summary>
+    public bool CanEditProject { get; set; }
 }
 
 /// <summary>
diff --git a/YD_Event.Application/Event/EventService.cs b/YD_Event.Application/Event/EventService.cs
index 1a7018c..3847250 100644
--- a/YD_Event.Application/Event/EventService.cs
+++ b/YD_Event.Application/Event/EventService.cs
@@ -150,6 +150,10 @@ public class EventService : BaseService<EventInfo>, ITransient
 
         var output = eventInfo.Adapt<EventDetailOutput>();
 
+        // 检查是否有报名记录，决定是否可以编辑项目（有报名记录时不能编辑项目和组别
+        var hasRegistration = await _registrationRepository.IsAnyAsync(x => x.EventId == id && !x.DeleteMark);
+        output.CanEditProject = !hasRegistration;
+
         // 1. 获取参与单位
         var units = await _unitRepository.GetListAsync(x => x.EventId == id);
         if (units.Any())
@@ -525,8 +529,8 @@ public class EventService : BaseService<EventInfo>, ITransient
         var eventInfo = await _repository.GetByIdAsync(input.Id);
         if (eventInfo == null) throw new InvalidOperationException("赛事不存在");
 
-        // 检查是否有报名记录：如果有人报名，检查是否修改了项目和组别
-        var hasRegistration = await _registrationRepository.IsAnyAsync(x => x.EventId == input.Id);
+        // 检查是否有报名记录：如果有人报名，检查是否修改了项目和组别（软删除的不算）
+        var hasRegistration = await _registrationRepository.IsAnyAsync(x => x.EventId == input.Id && !x.DeleteMark);
         if (hasRegistration)
         {
             var hasProjectOrGroupChange = await CheckIfProjectsOrGroupsChanged(input, eventInfo.Id);
@@ -1067,7 +1071,7 @@ public class EventService : BaseService<EventInfo>, ITransient
     [DisplayName("删除赛事")]
     public override async Task Delete(KeyDto dto)
     {
-        if (await _registrationRepository.IsAnyAsync(x => x.EventId == dto.Id))
+        if (await _registrationRepository.IsAnyAsync(x => x.EventId == dto.Id && !x.DeleteMark))
         {
             throw new InvalidOperationException("已有人员报名此赛事，暂不支持删除");
         }
@@ -1188,8 +1192,8 @@ public class EventService : BaseService<EventInfo>, ITransient
             throw new InvalidOperationException("请先完成参与单位配置");
         }
 
-        // 检查是否有报名记录：如果有人报名，检查是否修改了项目和组别
-        var hasRegistration = await _registrationRepository.IsAnyAsync(x => x.EventId == input.EventId);
+        // 检查是否有报名记录：如果有人报名，检查是否修改了项目和组别（软删除的不算）
+        var hasRegistration = await _registrationRepository.IsAnyAsync(x => x.EventId == input.EventId && !x.DeleteMark);
         if (hasRegistration)
         {
             var oldEventProjects = await _eventProjectRepository.GetListAsync(x => x.EventId == input.EventId && !x.DeleteMark);
diff --git a/YD_Event.Application/YD_Event.Application.xml b/YD_Event.Application/YD_Event.Application.xml
index 0810be6..9a399b7 100644
--- a/YD_Event.Application/YD_Event.Application.xml
+++ b/YD_Event.Application/YD_Event.Application.xml
@@ -4975,6 +4975,11 @@
             退款规则详情列表
             </summary>
         </member>
+        <member name="P:YD_Event.Application.Event.Dtos.EventDetailOutput.CanEditProject">
+            <summary>
+            是否可以编辑项目信息（有报名记录时不能编辑项目和组别
+            </summary>
+        </member>
         <member name="T:YD_Event.Application.Event.Dtos.PointsRuleDetailDto">
             <summary>
             积分规则明细DTO