diff --git a/GFramework.Core/ioc/IocContainer.cs b/GFramework.Core/ioc/IocContainer.cs
index 824abcc..d15661e 100644
--- a/GFramework.Core/ioc/IocContainer.cs
+++ b/GFramework.Core/ioc/IocContainer.cs
@@ -1,3 +1,5 @@
+using GFramework.Core.system;
+
 namespace GFramework.Core.ioc;
 
 /// <summary>
@@ -5,32 +7,187 @@ namespace GFramework.Core.ioc;
 /// </summary>
 public class IocContainer
 {
-    private readonly Dictionary<Type, object> _mInstances = new();
+    /// <summary>
+    /// 核心存储结构：
+    /// 一个 Type 对应 0~N 个实例
+    /// </summary>
+    private readonly Dictionary<Type, List<object>> _instances = new();
+
+    #region Register
 
     /// <summary>
-    ///     注册一个实例到IOC容器中
+    /// 注册单例（强语义）
+    /// 一个类型只允许一个实例
     /// </summary>
-    /// <typeparam name="T">实例的类型</typeparam>
-    /// <param name="instance">要注册的实例对象</param>
-    public void Register<T>(T instance)
+    /// <typeparam name="T">要注册为单例的类型</typeparam>
+    /// <param name="instance">要注册的单例实例</param>
+    /// <exception cref="InvalidOperationException">当该类型已经注册过单例时抛出异常</exception>
+    public void RegisterSingleton<T>(T instance)
     {
-        var key = typeof(T);
+        var type = typeof(T);
 
-        _mInstances[key] = instance;
+        if (_instances.TryGetValue(type, out var list) && list.Count > 0)
+        {
+            throw new InvalidOperationException(
+                $"Singleton already registered for type: {type.Name}");
+        }
+
+        _instances[type] = new List<object> { instance! };
     }
 
     /// <summary>
-    ///     从IOC容器中获取指定类型的实例
+    /// 注册多个接口实现，并将其实例同时绑定到其所有匹配的接口上
     /// </summary>
-    /// <typeparam name="T">要获取的实例类型</typeparam>
-    /// <returns>返回指定类型的实例，如果未找到则返回null</returns>
-    public T Get<T>() where T : class
+    /// <typeparam name="T">基类型或接口类型</typeparam>
+    /// <param name="instance">具体的实例对象</param>
+    public void RegisterPlurality<T>(T instance)
     {
-        var key = typeof(T);
+        var concreteType = instance!.GetType();
+        Register(concreteType, instance);
+        // 获取实例类型实现的所有接口，并筛选出可以赋值给T类型的接口
+        var interfaces = concreteType.GetInterfaces()
+            .Where(typeof(T).IsAssignableFrom);
+        foreach (var itf in interfaces)
+        {
+            Register(itf, instance);
+        }
+    }
 
-        // 尝试从字典中获取实例
-        if (_mInstances.TryGetValue(key, out var retInstance)) return retInstance as T;
+    /// <summary>
+    /// 注册系统实例，将其绑定到其所有实现的接口上
+    /// </summary>
+    /// <param name="system">系统实例对象</param>
+    public void RegisterSystem(ISystem system)
+    {
+        RegisterPlurality(system);
+    }
+
+    /// <summary>
+    /// 注册实例（自动支持多实例）
+    /// </summary>
+    /// <typeparam name="T">要注册的实例的类型</typeparam>
+    /// <param name="instance">要注册的实例</param>
+    public void Register<T>(T instance)
+    {
+        Register(typeof(T), instance!);
+    }
+
+    /// <summary>
+    /// 按指定类型注册实例
+    /// （常用于 interface / base type）
+    /// </summary>
+    /// <param name="type">要注册的目标类型</param>
+    /// <param name="instance">要注册的实例</param>
+    public void Register(Type type, object instance)
+    {
+        if (!_instances.TryGetValue(type, out var list))
+        {
+            list = new List<object>();
+            _instances[type] = list;
+        }
+
+        // 防止重复注册同一个实例
+        if (!list.Contains(instance))
+        {
+            list.Add(instance);
+        }
+    }
+
+    #endregion
+
+    #region Get
+
+    /// <summary>
+    /// 获取单个实例（通常用于具体类型）
+    /// 如果存在多个，只返回第一个
+    /// </summary>
+    /// <typeparam name="T">期望获取的实例类型</typeparam>
+    /// <returns>找到的第一个实例；如果未找到则返回 null</returns>
+    public T? Get<T>() where T : class
+    {
+        var type = typeof(T);
+
+        // 尝试从实例字典中获取指定类型的实例列表
+        if (_instances.TryGetValue(type, out var list) && list.Count > 0)
+        {
+            return list[0] as T;
+        }
 
         return null;
     }
+
+    /// <summary>
+    /// 获取指定类型的必需实例
+    /// </summary>
+    /// <typeparam name="T">期望获取的实例类型</typeparam>
+    /// <returns>找到的唯一实例</returns>
+    /// <exception cref="InvalidOperationException">当没有注册实例或注册了多个实例时抛出</exception>
+    public T GetRequired<T>() where T : class
+    {
+        var list = GetAll<T>();
+
+        // 根据实例数量进行判断和处理
+        return list.Count switch
+        {
+            0 => throw new InvalidOperationException($"No instance registered for {typeof(T).Name}"),
+            > 1 => throw new InvalidOperationException($"Multiple instances registered for {typeof(T).Name}"),
+            _ => list[0]
+        };
+    }
+
+
+    /// <summary>
+    /// 获取指定类型的所有实例（接口 / 抽象类推荐使用）
+    /// </summary>
+    /// <typeparam name="T">期望获取的实例类型</typeparam>
+    /// <returns>所有符合条件的实例列表；如果没有则返回空数组</returns>
+    public IReadOnlyList<T> GetAll<T>() where T : class
+    {
+        var type = typeof(T);
+
+        if (_instances.TryGetValue(type, out var list))
+        {
+            return list.Cast<T>().ToList();
+        }
+
+        return Array.Empty<T>();
+    }
+
+    /// <summary>
+    /// 获取并排序（系统调度专用）
+    /// </summary>
+    /// <typeparam name="T">期望获取的实例类型</typeparam>
+    /// <param name="comparison">比较器委托，定义排序规则</param>
+    /// <returns>按指定方式排序后的实例列表</returns>
+    public IReadOnlyList<T> GetAllSorted<T>(Comparison<T> comparison)
+        where T : class
+    {
+        var list = GetAll<T>().ToList();
+        list.Sort(comparison);
+        return list;
+    }
+
+    #endregion
+
+    #region Utility
+
+    /// <summary>
+    /// 是否已注册指定类型
+    /// </summary>
+    /// <typeparam name="T">要检查是否注册的类型</typeparam>
+    /// <returns>若该类型已被注册则返回 true，否则返回 false</returns>
+    public bool Contains<T>()
+    {
+        return _instances.ContainsKey(typeof(T));
+    }
+
+    /// <summary>
+    /// 清空容器
+    /// </summary>
+    public void Clear()
+    {
+        _instances.Clear();
+    }
+
+    #endregion
 }
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