diff --git a/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/Program.cs b/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/Program.cs
index 88adb3dea..8999a4ec7 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/Program.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/Program.cs
@@ -13,7 +13,7 @@ namespace SqlSeverTest.UserTestCases
         /// <param name="args"></param>
          public static void Init()
         {
-
+            UCustomConditionalFunc.Init();
             //Demo
             Demo0_SqlSugarClient.Init();
             Demo1_Queryable.Init();
diff --git a/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/UCustomConditionalFunc.cs b/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/UCustomConditionalFunc.cs
new file mode 100644
index 000000000..d8906dff2
--- /dev/null
+++ b/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/UCustomConditionalFunc.cs
@@ -0,0 +1,82 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+    public class UCustomConditionalFunc
+    {
+        public static void Init()
+        {
+            var conditionEmail = new ConditionalModel { FieldName = "Email", ConditionalType = ConditionalType.Like, FieldValue = "aaa" };
+            var conditionUserType = new ConditionalModel { FieldName = "UserType", FieldValue = "1", CustomConditionalFunc = new UserTypeConditionalFunc() };
+
+            var db = NewUnitTest.Db;
+            Demo1(conditionEmail, conditionUserType, db);
+            Demo2(conditionEmail, conditionUserType, db);
+            Demo3(conditionEmail, conditionUserType, db);
+        }
+
+        private static void Demo1(ConditionalModel conditionEmail, ConditionalModel conditionUserType, SqlSugarClient db)
+        {
+            var conditions = new List<IConditionalModel>();
+            conditions.Add(conditionEmail);
+            conditions.Add(new ConditionalCollections
+            {
+                ConditionalList = new List<KeyValuePair<WhereType, ConditionalModel>>
+                    {
+                                   new KeyValuePair<WhereType, ConditionalModel>(WhereType.And, conditionUserType)  // 这里key用[Or|Null]都没用
+                    }
+            });
+            db.CodeFirst.InitTables<AppUser>();
+            var query = db.Queryable<AppUser>().Where(conditions, true).ToList();
+        }
+        private static void Demo2(ConditionalModel conditionEmail, ConditionalModel conditionUserType, SqlSugarClient db)
+        {
+            var conditions = new List<IConditionalModel>();
+            conditions.Add(conditionEmail);
+            conditions.Add(new ConditionalCollections
+            {
+                ConditionalList = new List<KeyValuePair<WhereType, ConditionalModel>>
+                    {
+                                   new KeyValuePair<WhereType, ConditionalModel>(WhereType.Or, conditionUserType)  // 这里key用[Or|Null]都没用
+                    }
+            });
+            db.CodeFirst.InitTables<AppUser>();
+            var query = db.Queryable<AppUser>().Where(conditions, true).ToList();
+        }
+        private static void Demo3(ConditionalModel conditionEmail, ConditionalModel conditionUserType, SqlSugarClient db)
+        {
+            var conditions = new List<IConditionalModel>();
+         //   conditions.Add(conditionEmail);
+            conditions.Add(new ConditionalCollections
+            {
+                ConditionalList = new List<KeyValuePair<WhereType, ConditionalModel>>
+                    {
+                                   new KeyValuePair<WhereType, ConditionalModel>(WhereType.And, conditionUserType)  // 这里key用[Or|Null]都没用
+                    }
+            });
+            db.CodeFirst.InitTables<AppUser>();
+            var query = db.Queryable<AppUser>().Where(conditions, true).ToList();
+        }
+    }
+    [SugarTable("AppUseradfafa")]
+    public class AppUser
+    {
+        public int Id { get; set; }
+        public string Email { get; set; }
+        public int UserType { get; set; }
+    }
+
+    public class UserTypeConditionalFunc : ICustomConditionalFunc
+    {
+        public KeyValuePair<string, SugarParameter[]> GetConditionalSql(ConditionalModel conditionalModel, int index)
+        {
+            var sql = $"UserType = {conditionalModel.FieldValue}";
+            return new KeyValuePair<string, SugarParameter[]>(sql, Array.Empty<SugarParameter>());
+        }
+    }
+}