diff --git a/Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Application/Services/Forum/DiscussService.cs b/Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Application/Services/Forum/DiscussService.cs
index 36b06c0c..394536f5 100644
--- a/Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Application/Services/Forum/DiscussService.cs
+++ b/Yi.Abp.Net8/module/bbs/Yi.Framework.Bbs.Application/Services/Forum/DiscussService.cs
@@ -157,7 +157,12 @@ namespace Yi.Framework.Bbs.Application.Services.Forum
                 .WhereIF(input.UserName is not null, (discuss, user) => user.UserName == input.UserName!)
                 .LeftJoin<BbsUserExtraInfoEntity>((discuss, user, info) => user.Id == info.UserId)
                 .OrderByDescending(discuss => discuss.OrderNum)
-                .OrderByIF(input.Type == QueryDiscussTypeEnum.New, discuss => discuss.CreationTime, OrderByType.Desc)
+                .OrderByIF(input.Type == QueryDiscussTypeEnum.New, 
+                   @"COALESCE(discuss.LastModificationTime, discuss.CreationTime) DESC")
+                //采用上方写法
+                // .OrderByIF(input.Type == QueryDiscussTypeEnum.New, 
+                //     discuss => discuss.CreationTime, 
+                //     OrderByType.Desc)
                 .OrderByIF(input.Type == QueryDiscussTypeEnum.Host, discuss => discuss.SeeNum, OrderByType.Desc)
                 .OrderByIF(input.Type == QueryDiscussTypeEnum.Suggest, discuss => discuss.AgreeNum, OrderByType.Desc)
                 .Select((discuss, user, info) => new DiscussGetListOutputDto