diff --git a/Falcon.SugarApi/DatabaseDefinitions/DbSet.cs b/Falcon.SugarApi/DatabaseDefinitions/DbSet.cs
new file mode 100644
index 0000000..90daac1
--- /dev/null
+++ b/Falcon.SugarApi/DatabaseDefinitions/DbSet.cs
@@ -0,0 +1,25 @@
+using SqlSugar;
+
+namespace Falcon.SugarApi.DatabaseDefinitions
+{
+    /// <summary>
+    /// 代表一张表
+    /// </summary>
+    /// <typeparam name="T">表定义类型</typeparam>
+    public class DbSet<T> : SimpleClient<T> where T : class, new()
+    {
+        /// <summary>
+        /// 通过数据上下文构造一张表
+        /// </summary>
+        /// <param name="context">数据上下文</param>
+        public DbSet(SqlSugarClient context) : base(context) { }
+        /// <summary>
+        /// 返回可迭代的
+        /// </summary>
+        /// <returns></returns>
+        public virtual ISugarQueryable<T> Queryable() {
+            return Context.Queryable<T>();
+        }
+    }
+
+}
diff --git a/Falcon.SugarApi/DatabaseDefinitions/MyConnectionConfig.cs b/Falcon.SugarApi/DatabaseDefinitions/SugarConnectionConfig.cs
similarity index 94%
rename from Falcon.SugarApi/DatabaseDefinitions/MyConnectionConfig.cs
rename to Falcon.SugarApi/DatabaseDefinitions/SugarConnectionConfig.cs
index 3f6a19d..f923d20 100644
--- a/Falcon.SugarApi/DatabaseDefinitions/MyConnectionConfig.cs
+++ b/Falcon.SugarApi/DatabaseDefinitions/SugarConnectionConfig.cs
@@ -15,7 +15,9 @@ namespace Falcon.SugarApi.DatabaseDefinitions
         /// 是否使用log
         /// </summary>
         public bool Log { get; set; }
-
+        /// <summary>
+        /// 实例化SugarDb链接配置
+        /// </summary>
         public SugarConnectionConfig() {
             this.ConfigureExternalServices ??= new ConfigureExternalServices { };
             this.ConfigureExternalServices.EntityService += (p, c) => {
diff --git a/Falcon.SugarApi/DatabaseDefinitions/SugarDbTables.cs b/Falcon.SugarApi/DatabaseDefinitions/SugarDbTables.cs
new file mode 100644
index 0000000..fb4775d
--- /dev/null
+++ b/Falcon.SugarApi/DatabaseDefinitions/SugarDbTables.cs
@@ -0,0 +1,35 @@
+using SqlSugar;
+using System;
+using System.Reflection;
+
+namespace Falcon.SugarApi.DatabaseDefinitions
+{
+    /// <summary>
+    /// 表示数据库表结构定义
+    /// </summary>
+    public abstract class SugarDbTables
+    {
+        /// <summary>
+        /// 表使用的数据上下文
+        /// </summary>
+        private SugarDbContext DbContext { get; set; }
+
+        /// <summary>
+        /// 通过数据上下文构造表集合对象，并实例化所有DbSet实例
+        /// </summary>
+        /// <param name="dbContext">使用的数据上下文</param>
+        /// <param name="createInstance">是否实例化所有DbSet表对象</param>
+        public SugarDbTables(SugarDbContext dbContext, bool createInstance = true) {
+            this.DbContext = dbContext;
+            if (createInstance) {
+                foreach (PropertyInfo property in this.GetType().GetProperties()) {
+                    var ptype = property.PropertyType;
+                    if (ptype.IsGenericType() && ptype.GetGenericTypeDefinition() == typeof(DbSet<>) && property.CanWrite) {
+                        property.SetValue(this, Activator.CreateInstance(ptype, this.DbContext));
+                    }
+                }
+            }
+        }
+    }
+
+}
diff --git a/Falcon.SugarApi/IServiceCollectionExtend.cs b/Falcon.SugarApi/IServiceCollectionExtend.cs
index 881b003..08307e3 100644
--- a/Falcon.SugarApi/IServiceCollectionExtend.cs
+++ b/Falcon.SugarApi/IServiceCollectionExtend.cs
@@ -14,16 +14,6 @@ namespace Falcon.SugarApi
     /// </summary>
     public static class IServiceCollectionExtend
     {
-        /// <summary>
-        /// 注册Falcon.Sugar相关api方法和数据库上下文。
-        /// </summary>
-        /// <param name="services">服务集合</param>
-        /// <param name="config">数据上下文配置节点</param>
-        /// <returns>服务集合</returns>
-        public static IServiceCollection AddSugarApiWithDbContext(this IServiceCollection services, SugarConnectionConfig config) {
-            return services.AddSugarApiDbContext(config).AddApiReturnModelProvider();
-        }
-
         /// <summary>
         /// 注册sugarDbcontext数据上下文
         /// </summary>