diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs b/Src/Asp.NetCore2/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs
index f049822fa..1f4819753 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs
@@ -38,6 +38,10 @@ namespace SqlSugar
                 result =this.Context.SqlQueryable<object>(result).Skip(Skip??0).Take(Take??0).ToSql().Key;
                 
 
+            }
+            if (IsDistinct && oldTake == 1 && oldSkip == null) 
+            {
+                result = result.Replace(" TOP 1  DISTINCT", " TOP 1 ");
             }
             if (result.IndexOf("-- No table") > 0) 
             {