diff --git a/Src/Asp.NetCore2/DmOrmTest/UnitTest/UBulkCopy.cs b/Src/Asp.NetCore2/DmOrmTest/UnitTest/UBulkCopy.cs
new file mode 100644
index 000000000..dae749b29
--- /dev/null
+++ b/Src/Asp.NetCore2/DmOrmTest/UnitTest/UBulkCopy.cs
@@ -0,0 +1,66 @@
+using SqlSugar;
+using SqlSugar.DbConvert;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OrmTest
+{
+    public partial class NewUnitTest
+    {
+        public static void Bulk()
+        {
+            var db = NewUnitTest.Db;
+            db.DbMaintenance.DropTable<UnitBulkCopyaaa>();
+            db.CodeFirst.InitTables<UnitBulkCopyaaa>();
+            db.DbMaintenance.TruncateTable<UnitBulkCopyaaa>(); 
+            db.Fastest<UnitBulkCopyaaa>().BulkCopy(new List<UnitBulkCopyaaa>()
+            {
+                new UnitBulkCopyaaa(){ a=DbType.GaussDB,Id=1 }
+            });
+            db.Fastest<UnitBulkCopyaaa>().BulkUpdate(new List<UnitBulkCopyaaa>()
+            {
+                new UnitBulkCopyaaa(){ a=DbType.GaussDB,Id=1 }
+            });
+            Console.WriteLine("用例跑完");
+        }
+
+    }
+    public class UnitBulkCopyaaa 
+    {
+        [SugarColumn(IsPrimaryKey =true)]
+        public int Id { get; set; }
+        [SqlSugar.SugarColumn(ColumnDataType ="varchar(10)",SqlParameterDbType = typeof(EnumToStringConvert))]
+        public DbType a { get; set; }
+    }
+    public class UnitTestoffset11
+    {
+        [SqlSugar.SugarColumn(IsNullable = true)]
+        public DateTimeOffset? DateTimeOffset { get; set; }
+    }
+    public class UnitTable001
+    {
+        [SqlSugar.SugarColumn(IsPrimaryKey =true)]
+        public int Id { get; set; }
+        public string table { get; set; }
+    }
+    public class UnitIdentity111
+    {
+        public int Id { get; set; }
+        public string Name { get; set; }
+    }
+    public class UnitIdentity111111111
+    {
+        [SqlSugar.SugarColumn(IsPrimaryKey = true)]
+        public int Id { get; set; }
+        public string Name { get; set; }
+    }
+
+    public class UnitIdentity1 
+    {
+        [SqlSugar.SugarColumn(IsPrimaryKey =true,IsIdentity =true)]
+        public int Id { get; set; }
+        public string Name { get; set; }
+    }
+}