diff --git a/Src/Asp.Net/MySqlTest/Demo/Demo1_Queryable.cs b/Src/Asp.Net/MySqlTest/Demo/Demo1_Queryable.cs
index 3b40db731..e10f4f2f0 100644
--- a/Src/Asp.Net/MySqlTest/Demo/Demo1_Queryable.cs
+++ b/Src/Asp.Net/MySqlTest/Demo/Demo1_Queryable.cs
@@ -41,6 +41,7 @@ namespace OrmTest
             var getByWhere = db.Queryable<Order>().Where(it => it.Id == 1 || it.Name == "a").ToList();
             var getByWhere2 = db.Queryable<Order>().Where(it => it.Id == DateTime.Now.Year).ToList();
             var getByFuns = db.Queryable<Order>().Where(it => SqlFunc.IsNullOrEmpty(it.Name)).ToList();
+            var getByFuns2 = db.Queryable<Order>().GroupBy(it=>it.Name).Select(it=>SqlFunc.AggregateDistinctCount(it.Price)).ToList();
             Console.WriteLine("#### Examples End ####");
         }
 
diff --git a/Src/Asp.Net/SqlServerTest/Demo/Demo1_Queryable.cs b/Src/Asp.Net/SqlServerTest/Demo/Demo1_Queryable.cs
index 16512f7ef..bc6789f5c 100644
--- a/Src/Asp.Net/SqlServerTest/Demo/Demo1_Queryable.cs
+++ b/Src/Asp.Net/SqlServerTest/Demo/Demo1_Queryable.cs
@@ -41,6 +41,7 @@ namespace OrmTest
             var getByWhere = db.Queryable<Order>().Where(it => it.Id == 1 || it.Name == "a").ToList();
             var getByWhere2 = db.Queryable<Order>().Where(it => it.Id == DateTime.Now.Year).ToList();
             var getByFuns = db.Queryable<Order>().Where(it => SqlFunc.IsNullOrEmpty(it.Name)).ToList();
+            var getByFuns2 = db.Queryable<Order>().GroupBy(it => it.Name).Select(it => SqlFunc.AggregateDistinctCount(it.Price)).ToList();
             Console.WriteLine("#### Examples End ####");
         }
 
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
index 74a199270..a3aefd70b 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
@@ -101,6 +101,7 @@ namespace SqlSugar
         public static TResult AggregateMin<TResult>(TResult thisValue) { throw new NotSupportedException("Can only be used in expressions"); }
         public static TResult AggregateMax<TResult>(TResult thisValue) { throw new NotSupportedException("Can only be used in expressions"); }
         public static int AggregateCount<TResult>(TResult thisValue) { throw new NotSupportedException("Can only be used in expressions"); }
+        public static int AggregateDistinctCount<TResult>(TResult thisValue) { throw new NotSupportedException("Can only be used in expressions"); }
         public static TResult MappingColumn<TResult>(TResult oldColumnName,string newColumnName) { throw new NotSupportedException("Can only be used in expressions"); }
         /// <summary>
         ///Example: new NewT(){name=SqlFunc.GetSelfAndAutoFill(it)}  Generated SQL   it.*