diff --git a/Src/Asp.Net/MySqlTest/UnitTest/UCodeFirst.cs b/Src/Asp.Net/MySqlTest/UnitTest/UCodeFirst.cs
index 1213f4394..cc910e254 100644
--- a/Src/Asp.Net/MySqlTest/UnitTest/UCodeFirst.cs
+++ b/Src/Asp.Net/MySqlTest/UnitTest/UCodeFirst.cs
@@ -43,9 +43,18 @@ namespace OrmTest
             Db.Insertable(new List<UnitDateOfTime2> { new UnitDateOfTime2() { DateTimeOffset1 = DateTimeOffset.Now }, new UnitDateOfTime2() { DateTimeOffset1 = DateTimeOffset.Now } }).ExecuteCommand();
             var list2 = Db.Queryable<UnitDateOfTime2>().ToList();
             Db.Insertable(new UnitDateOfTime222() { DateTimeOffset1 = null }).ExecuteCommand();
-
+            if(Db.DbMaintenance.IsAnyTable("Unit1afa113111"))
+              Db.DbMaintenance.DropTable("Unit1afa113111");
+            Db.CodeFirst.InitTables<Unit1afa113111>();
+            var entity=Db.Insertable(new Unit1afa113111() { Name = "a" }).ExecuteReturnEntity();
         }
 
+        public class Unit1afa113111 
+        {
+            [SugarColumn(ColumnName ="aid",IsPrimaryKey =true,IsIdentity =true,ColumnDataType ="int(11)unsigned")]
+            public uint id { get; set; }
+            public string Name { get; set; }
+        }
         public class UnitDateOfTime2
         {
             [SqlSugar.SugarColumn(ColumnDataType ="datetime(3)")]
diff --git a/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
index 2547d4300..118c7283f 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
@@ -203,6 +203,14 @@ namespace SqlSugar
             object setValue = 0;
             if (idValue > int.MaxValue)
                 setValue = idValue;
+            else if (this.EntityInfo.Columns.Any(it => it.IsIdentity && it.PropertyInfo.PropertyType == typeof(uint))) 
+            {
+                setValue = Convert.ToUInt32(idValue);
+            }
+            else if (this.EntityInfo.Columns.Any(it => it.IsIdentity && it.PropertyInfo.PropertyType == typeof(ulong)))
+            {
+                setValue = Convert.ToUInt64(idValue);
+            }
             else
                 setValue = Convert.ToInt32(idValue);
             this.Context.EntityMaintenance.GetProperty<T>(identityKey).SetValue(result, setValue, null);