diff --git a/Src/Asp.Net/SqlServerTest/Demos/A_MasterSlave.cs b/Src/Asp.Net/SqlServerTest/Demos/A_MasterSlave.cs
index 65fd5ea48..112d6a776 100644
--- a/Src/Asp.Net/SqlServerTest/Demos/A_MasterSlave.cs
+++ b/Src/Asp.Net/SqlServerTest/Demos/A_MasterSlave.cs
@@ -13,12 +13,13 @@ namespace OrmTest.Demo
 
         public static void Init()
         {
-            var db = GetMasterSlaveInstance();
-            for (int i = 0; i < 10; i++)
+         
+            for (int i = 0; i < 1000; i++)
             {
-                var list = db.Queryable<Student>().ToList(); // ConnectionString2 or ConnectionString3
+                var db = GetMasterSlaveInstance();
+                var list = db.Insertable(new Student() { Name="aa" }).ExecuteCommand(); // ConnectionString2 or ConnectionString3
             }
-            db.Insertable(new Student() { Name = "masterTest" }).ExecuteCommand();// Config.ConnectionString
+            //db.Insertable(new Student() { Name = "masterTest" }).ExecuteCommand();// Config.ConnectionString
         }
 
         public static SqlSugarClient GetMasterSlaveInstance()
@@ -29,8 +30,8 @@ namespace OrmTest.Demo
                 DbType = DbType.SqlServer,
                 IsAutoCloseConnection = true,
                 SlaveConnectionConfigs = new List<SlaveConnectionConfig>() {
-                     new SlaveConnectionConfig() { HitRate=10, ConnectionString=Config.ConnectionString2 },
-                     new SlaveConnectionConfig() { HitRate=30, ConnectionString=Config.ConnectionString3 }
+                     new SlaveConnectionConfig() { HitRate=10, ConnectionString=Config.ConnectionString2 } ,
+                       new SlaveConnectionConfig() { HitRate=10, ConnectionString=Config.ConnectionString2 }
                 }
             });
             db.Aop.OnLogExecuting = (sql, pars) =>
diff --git a/Src/Asp.Net/SqlSugar/Abstract/AdoProvider/AdoProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/AdoProvider/AdoProvider.cs
index 7fcb4faf9..1fa244f01 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/AdoProvider/AdoProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/AdoProvider/AdoProvider.cs
@@ -75,7 +75,7 @@ namespace SqlSugar
             {
                 this.Connection.Close();
             }
-            if (this.IsMasterSlaveSeparation)
+            if (this.IsMasterSlaveSeparation && this.SlaveConnections.HasValue())
             {
                 foreach (var slaveConnection in this.SlaveConnections)
                 {
@@ -263,7 +263,7 @@ namespace SqlSugar
                 if (this.IsClearParameters)
                     sqlCommand.Parameters.Clear();
                 ExecuteAfter(sql, parameters);
-                SetConnectionEnd();
+                SetConnectionEnd(sql);
                 return count;
             }
             catch (Exception ex)
@@ -293,7 +293,7 @@ namespace SqlSugar
                 if (this.IsClearParameters)
                     sqlCommand.Parameters.Clear();
                 ExecuteAfter(sql, parameters);
-                SetConnectionEnd();
+                SetConnectionEnd(sql);
                 return sqlDataReader;
             }
             catch (Exception ex)
@@ -319,7 +319,7 @@ namespace SqlSugar
                 if (this.IsClearParameters)
                     sqlCommand.Parameters.Clear();
                 ExecuteAfter(sql, parameters);
-                SetConnectionEnd();
+                SetConnectionEnd(sql);
                 return ds;
             }
             catch (Exception ex)
@@ -347,7 +347,7 @@ namespace SqlSugar
                 if (this.IsClearParameters)
                     sqlCommand.Parameters.Clear();
                 ExecuteAfter(sql, parameters);
-                SetConnectionEnd();
+                SetConnectionEnd(sql);
                 return scalar;
             }
             catch (Exception ex)
@@ -719,9 +719,9 @@ namespace SqlSugar
             return result.Count() == 0;
         }
 
-        private void SetConnectionEnd()
+        private void SetConnectionEnd(string sql)
         {
-            if (this.IsMasterSlaveSeparation)
+            if (this.IsMasterSlaveSeparation && IsRead(sql))
             {
                 this.Connection = this.MasterConnection;
                 this.Context.CurrentConnectionConfig.ConnectionString = this.MasterConnection.ConnectionString;
diff --git a/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs b/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs
index 7a28eed1e..82dfcb9b1 100644
--- a/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs
+++ b/Src/Asp.Net/SqlSugar/Properties/AssemblyInfo.cs
@@ -31,5 +31,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("4.5.9.5")]
-[assembly: AssemblyFileVersion("4.5.9.5")]
+[assembly: AssemblyVersion("4.5.9.6")]
+[assembly: AssemblyFileVersion("4.5.9.6")]