diff --git a/docs/core-concepts/event-flow.md b/docs/core-concepts/event-flow.md
index 5d7275e..e38f497 100644
--- a/docs/core-concepts/event-flow.md
+++ b/docs/core-concepts/event-flow.md
@@ -8,15 +8,51 @@
 
 ```mermaid
 graph TD
-    A[OneBot v11 实现端] -- WebSocket Message --> B(core/ws.py);
-    B -- Raw JSON Data --> C(models/events/factory.py);
-    C -- Event Object --> D(core/ws.py on_event);
-    D -- Event Object --> E(core/managers/command_manager.py);
-    E -- Event & Command Match --> F(core/handlers/event_handler.py);
-    F -- Matched Handler --> G(plugins/echo.py);
-    G -- Call API --> H(core/bot.py);
-    H -- Send Request --> B;
-    B -- WebSocket Send --> A;
+    %% 定义样式
+    classDef external fill:#e1f5fe,stroke:#01579b,stroke-width:2px;
+    classDef network fill:#fff9c4,stroke:#fbc02d,stroke-width:2px;
+    classDef core fill:#e8f5e9,stroke:#2e7d32,stroke-width:2px;
+    classDef plugin fill:#fce4ec,stroke:#c2185b,stroke-width:2px;
+
+    subgraph External [外部环境]
+        OneBot[OneBot v11 实现端<br/>(如 NapCatQQ)]:::external
+    end
+
+    subgraph NeoBot [NEO Bot Framework]
+        direction TB
+        
+        subgraph Network [网络接入层]
+            WS[WebSocket 连接<br/>core/ws.py]:::network
+        end
+
+        subgraph Processing [核心处理层]
+            Factory[事件工厂<br/>models/events/factory.py]:::core
+            Dispatcher[命令管理器<br/>core/managers/command_manager.py]:::core
+            Handler[事件处理器<br/>core/handlers/event_handler.py]:::core
+            BotAPI[Bot API 封装<br/>core/bot.py]:::core
+        end
+
+        subgraph Plugins [业务插件层]
+            UserPlugin[用户插件<br/>plugins/*.py]:::plugin
+        end
+    end
+
+    %% 事件上报流程 (实线)
+    OneBot -- 1. WebSocket 消息 --> WS
+    WS -- 2. 原始 JSON --> Factory
+    Factory -- 3. Event 对象 --> WS
+    WS -- 4. 分发事件 --> Dispatcher
+    Dispatcher -- 5. 匹配指令/事件 --> Handler
+    Handler -- 6. 调用处理函数 --> UserPlugin
+
+    %% API 调用流程 (虚线)
+    UserPlugin -. 7. 调用 bot.send() .-> BotAPI
+    BotAPI -. 8. 封装 API 请求 .-> WS
+    WS -. 9. 发送 JSON .-> OneBot
+
+    %% 链接样式
+    linkStyle 0,1,2,3,4,5 stroke:#333,stroke-width:2px;
+    linkStyle 6,7,8 stroke:#666,stroke-width:2px,stroke-dasharray: 5 5;
 ```
 
 ## 详细步骤