diff --git a/SqlSugar/Realization/SqlServer/Core/SqlBuilder/SqlServerDbMaintenance.cs b/SqlSugar/Realization/SqlServer/DbMaintenance/SqlServerDbMaintenance.cs
similarity index 100%
rename from SqlSugar/Realization/SqlServer/Core/SqlBuilder/SqlServerDbMaintenance.cs
rename to SqlSugar/Realization/SqlServer/DbMaintenance/SqlServerDbMaintenance.cs
diff --git a/SqlSugar/Realization/SqlServer/Core/SqlServerProvider.cs b/SqlSugar/Realization/SqlServer/SqlServerProvider.cs
similarity index 98%
rename from SqlSugar/Realization/SqlServer/Core/SqlServerProvider.cs
rename to SqlSugar/Realization/SqlServer/SqlServerProvider.cs
index 8b9d1fab1..08063ce34 100644
--- a/SqlSugar/Realization/SqlServer/Core/SqlServerProvider.cs
+++ b/SqlSugar/Realization/SqlServer/SqlServerProvider.cs
@@ -1,5 +1,4 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Data;
 using System.Data.SqlClient;
 using System.Linq;
diff --git a/SqlSugar/SqlSugar.csproj b/SqlSugar/SqlSugar.csproj
index 3a709ec2a..a5c50b009 100644
--- a/SqlSugar/SqlSugar.csproj
+++ b/SqlSugar/SqlSugar.csproj
@@ -88,9 +88,9 @@
     <Compile Include="Realization\SqlServer\Core\DbBind\SqlServerDbBind.cs" />
     <Compile Include="Realization\SqlServer\DbFirst\SqlServerDbFirst.cs" />
     <Compile Include="Realization\SqlServer\Core\SqlBuilder\SqlServerBuilder.cs" />
-    <Compile Include="Realization\SqlServer\Core\SqlBuilder\SqlServerDbMaintenance.cs" />
+    <Compile Include="Realization\SqlServer\DbMaintenance\SqlServerDbMaintenance.cs" />
     <Compile Include="Realization\SqlServer\Core\SqlBuilder\SqlServerQueryBuilder.cs" />
-    <Compile Include="Realization\SqlServer\Core\SqlServerProvider.cs" />
+    <Compile Include="Realization\SqlServer\SqlServerProvider.cs" />
     <Compile Include="Realization\SqlServer\Queryable\SqlServerQueryable.cs" />
     <Compile Include="Entities\DetaultT.cs" />
     <Compile Include="Entities\ConnectionConfig.cs" />