diff --git a/Src/Asp.Net/MySqlTest/Config.cs b/Src/Asp.Net/MySqlTest/Config.cs
index d017f8af4..b3b355553 100644
--- a/Src/Asp.Net/MySqlTest/Config.cs
+++ b/Src/Asp.Net/MySqlTest/Config.cs
@@ -9,5 +9,7 @@ namespace OrmTest
     public class Config
     {
         public static string ConnectionString = "server=localhost;Database=SqlSugar4xTest;Uid=root;Pwd=root";
+        public static string ConnectionString2 = "server=localhost;Database=SQLSUGAR4XTEST;Uid=root;Pwd=root";
+        public static string ConnectionString3 = "server=localhost;Database=sqlsugar4xtest;Uid=root;Pwd=root";
     }
 }
diff --git a/Src/Asp.Net/MySqlTest/Demos/A_MasterSlave.cs b/Src/Asp.Net/MySqlTest/Demos/A_MasterSlave.cs
new file mode 100644
index 000000000..6aea22c1d
--- /dev/null
+++ b/Src/Asp.Net/MySqlTest/Demos/A_MasterSlave.cs
@@ -0,0 +1,43 @@
+using OrmTest.Demo;
+using OrmTest.Models;
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OrmTest.Demo
+{
+    public class MasterSlave : DemoBase
+    {
+
+        public static void Init()
+        {
+            var db = GetMasterSlaveInstance();
+            for (int i = 0; i < 10; i++)
+            {
+                var list = db.Queryable<Student>().ToList(); // ConnectionString2 or ConnectionString3
+            }
+            db.Insertable(new Student() { Name = "masterTest" }).ExecuteCommand();// Config.ConnectionString
+        }
+
+        public static SqlSugarClient GetMasterSlaveInstance()
+        {
+            SqlSugarClient db = new SqlSugarClient(new ConnectionConfig()
+            {
+                ConnectionString = Config.ConnectionString,
+                DbType = DbType.MySql,
+                IsAutoCloseConnection = true,
+                SlaveConnectionStrings = new List<SlaveConnectionConfig>() {
+                     new SlaveConnectionConfig() { HitRate=10, ConnectionString=Config.ConnectionString2 },
+                     new SlaveConnectionConfig() { HitRate=30, ConnectionString=Config.ConnectionString3 }
+                }
+            });
+            db.Aop.OnLogExecuting = (sql, pars) =>
+            {
+                Console.WriteLine(db.Ado.Connection.ConnectionString);
+            };
+            return db;
+        }
+    }
+}
diff --git a/Src/Asp.Net/MySqlTest/MySqlTest.csproj b/Src/Asp.Net/MySqlTest/MySqlTest.csproj
index b1084857b..b7379697f 100644
--- a/Src/Asp.Net/MySqlTest/MySqlTest.csproj
+++ b/Src/Asp.Net/MySqlTest/MySqlTest.csproj
@@ -57,6 +57,7 @@
     <Compile Include="Demos\6_ComplexModel.cs" />
     <Compile Include="Demos\7_Filter.cs" />
     <Compile Include="Demos\8_JoinSql.cs" />
+    <Compile Include="Demos\A_MasterSlave.cs" />
     <Compile Include="Demos\DemoBase.cs" />
     <Compile Include="Models\DataTestInfo.cs" />
     <Compile Include="Models\DataTestInfo2.cs" />
diff --git a/Src/Asp.Net/MySqlTest/Program.cs b/Src/Asp.Net/MySqlTest/Program.cs
index cea8c21c8..5507e386b 100644
--- a/Src/Asp.Net/MySqlTest/Program.cs
+++ b/Src/Asp.Net/MySqlTest/Program.cs
@@ -44,6 +44,7 @@ namespace OrmTest
             OrmTest.Demo.Filter.Init();
             OrmTest.Demo.ComplexModel.Init();
             OrmTest.Demo.CodeFirst.Init();;
+            OrmTest.Demo.MasterSlave.Init(); ;
         }
     }
 }