diff --git a/Src/Asp.Net/PgSqlTest/Demo/DemoH_Snowflake.cs b/Src/Asp.Net/PgSqlTest/Demo/DemoH_Snowflake.cs
new file mode 100644
index 000000000..1a06aebe3
--- /dev/null
+++ b/Src/Asp.Net/PgSqlTest/Demo/DemoH_Snowflake.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PgSqlTest.Demo
+{
+    class DemoH_Snowflake
+    {
+    }
+}
diff --git a/Src/Asp.Net/SqlServerTest/Demo/DemoL_Snowflake.cs b/Src/Asp.Net/SqlServerTest/Demo/DemoL_Snowflake.cs
new file mode 100644
index 000000000..eb947ac7c
--- /dev/null
+++ b/Src/Asp.Net/SqlServerTest/Demo/DemoL_Snowflake.cs
@@ -0,0 +1,49 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest 
+{
+    public class DemoL_Snowflake
+    {
+        public static void Init()
+        {
+            Console.WriteLine("");
+            Console.WriteLine("#### Utilities Start ####");
+
+            SqlSugarClient db = new SqlSugarClient(new ConnectionConfig()
+            {
+                DbType = DbType.SqlServer,
+                ConnectionString = Config.ConnectionString,
+                InitKeyType = InitKeyType.Attribute,
+                IsAutoCloseConnection = true,
+                AopEvents = new AopEvents
+                {
+                    OnLogExecuting = (sql, p) =>
+                    {
+                        Console.WriteLine(sql);
+                        Console.WriteLine(string.Join(",", p?.Select(it => it.ParameterName + ":" + it.Value)));
+                    }
+                }
+            });
+            db.CodeFirst.InitTables<SnowflakeModel>();
+            Console.WriteLine(db.Queryable<SnowflakeModel>().Count());
+            var id= db.Insertable(new SnowflakeModel()
+            {
+                Name="哈哈"
+            }).ExecuteReturnSnowflakeId();
+            var ids = db.Insertable(db.Queryable<SnowflakeModel>().Take(10).ToList()).ExecuteReturnSnowflakeIdList();
+            Console.WriteLine(db.Queryable<SnowflakeModel>().Count());
+        }
+    }
+    public class SnowflakeModel 
+    {
+        [SugarColumn(IsPrimaryKey =true)]
+        public long Id { get; set; }
+
+        public string Name{get;set; }
+    }
+}
diff --git a/Src/Asp.Net/SqlServerTest/Program.cs b/Src/Asp.Net/SqlServerTest/Program.cs
index a63e9a02c..7a7cec647 100644
--- a/Src/Asp.Net/SqlServerTest/Program.cs
+++ b/Src/Asp.Net/SqlServerTest/Program.cs
@@ -32,6 +32,7 @@ namespace OrmTest
             DemoG_SimpleClient.Init();
             DemoH_Tenant.Init();
             DemoJ_Report.Init();
+            DemoL_Snowflake.Init();
             //Unit test
             //NewUnitTest.Init();
 
diff --git a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
index f83a28085..3c7a31143 100644
--- a/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
+++ b/Src/Asp.Net/SqlServerTest/SqlServerTest.csproj
@@ -69,6 +69,7 @@
     <Compile Include="Demo\DemoG_SimpleClient.cs" />
     <Compile Include="Demo\DemoH_Tenant.cs" />
     <Compile Include="Demo\DemoJ_Report.cs" />
+    <Compile Include="Demo\DemoL_Snowflake.cs" />
     <Compile Include="Models\DataDictionary.cs" />
     <Compile Include="Models\Custom.cs" />
     <Compile Include="Models\EntityMapper.cs" />
diff --git a/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
index 8c7622e8e..b1fd19583 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
@@ -91,9 +91,10 @@ namespace SqlSugar
             var entity = this.Context.EntityMaintenance.GetEntityInfo<T>();
             var snowProperty=entity.Columns.FirstOrDefault(it => it.IsPrimarykey && it.PropertyInfo.PropertyType == UtilConstants.LongType);
             Check.Exception(snowProperty==null, "The entity sets the primary key and is long");
-            foreach (var item in this.InsertObjs)
+            Check.Exception(snowProperty.IsIdentity == true, "SnowflakeId IsIdentity can't true");
+            foreach (var item in  this.InsertBuilder.DbColumnInfoList.Where(it=>it.PropertyName==snowProperty.PropertyName))
             {
-                snowProperty.PropertyInfo.SetValue(item,id);
+                item.Value = id;
             }
             this.ExecuteCommand();
             return id;
@@ -104,10 +105,11 @@ namespace SqlSugar
             var entity = this.Context.EntityMaintenance.GetEntityInfo<T>();
             var snowProperty = entity.Columns.FirstOrDefault(it => it.IsPrimarykey && it.PropertyInfo.PropertyType == UtilConstants.LongType);
             Check.Exception(snowProperty == null, "The entity sets the primary key and is long");
-            foreach (var item in InsertObjs)
+            Check.Exception(snowProperty.IsIdentity == true, "SnowflakeId IsIdentity can't true");
+            foreach (var item in this.InsertBuilder.DbColumnInfoList.Where(it => it.PropertyName == snowProperty.PropertyName))
             {
-                var id = SnowFlakeSingle.instance.getID();;
-                snowProperty.PropertyInfo.SetValue(item, id);
+                var id = SnowFlakeSingle.instance.getID();
+                item.Value = id;
                 result.Add(id);
             }
             this.ExecuteCommand();
@@ -119,9 +121,10 @@ namespace SqlSugar
             var entity = this.Context.EntityMaintenance.GetEntityInfo<T>();
             var snowProperty = entity.Columns.FirstOrDefault(it => it.IsPrimarykey && it.PropertyInfo.PropertyType == UtilConstants.LongType);
             Check.Exception(snowProperty == null, "The entity sets the primary key and is long");
-            foreach (var item in this.InsertObjs)
+            Check.Exception(snowProperty.IsIdentity == true, "SnowflakeId IsIdentity can't true");
+            foreach (var item in this.InsertBuilder.DbColumnInfoList.Where(it => it.PropertyName == snowProperty.PropertyName))
             {
-                snowProperty.PropertyInfo.SetValue(item, id);
+                item.Value = id;
             }
             await this.ExecuteCommandAsync();
             return id;
@@ -132,10 +135,11 @@ namespace SqlSugar
             var entity = this.Context.EntityMaintenance.GetEntityInfo<T>();
             var snowProperty = entity.Columns.FirstOrDefault(it => it.IsPrimarykey && it.PropertyInfo.PropertyType == UtilConstants.LongType);
             Check.Exception(snowProperty == null, "The entity sets the primary key and is long");
-            foreach (var item in InsertObjs)
+            Check.Exception(snowProperty.IsIdentity == true, "SnowflakeId IsIdentity can't true");
+            foreach (var item in this.InsertBuilder.DbColumnInfoList.Where(it => it.PropertyName == snowProperty.PropertyName))
             {
-                var id = SnowFlakeSingle.instance.getID(); ;
-                snowProperty.PropertyInfo.SetValue(item, id);
+                var id = SnowFlakeSingle.instance.getID();
+                item.Value = id;
                 result.Add(id);
             }
             await this.ExecuteCommandAsync();