diff --git a/packages/client-base/src/index.ts b/packages/client-base/src/index.ts
index a832b94..f2e03fa 100644
--- a/packages/client-base/src/index.ts
+++ b/packages/client-base/src/index.ts
@@ -1,3 +1,2 @@
 export * from './glUtils';
-export * from './keyCodes';
 export * from './types';
diff --git a/packages/system/src/action/hotkey.ts b/packages/system/src/hotkey/hotkey.ts
similarity index 100%
rename from packages/system/src/action/hotkey.ts
rename to packages/system/src/hotkey/hotkey.ts
diff --git a/packages/system/src/action/index.ts b/packages/system/src/hotkey/index.ts
similarity index 50%
rename from packages/system/src/action/index.ts
rename to packages/system/src/hotkey/index.ts
index 3a8ba41..bb1b172 100644
--- a/packages/system/src/action/index.ts
+++ b/packages/system/src/hotkey/index.ts
@@ -1,2 +1,4 @@
 export * from './hotkey';
 export * from './keyboard';
+export * from './keyCodes';
+export * from './type';
diff --git a/packages/client-base/src/keyCodes.ts b/packages/system/src/hotkey/keyCodes.ts
similarity index 100%
rename from packages/client-base/src/keyCodes.ts
rename to packages/system/src/hotkey/keyCodes.ts
diff --git a/packages/system/src/action/keyboard.ts b/packages/system/src/hotkey/keyboard.ts
similarity index 100%
rename from packages/system/src/action/keyboard.ts
rename to packages/system/src/hotkey/keyboard.ts
diff --git a/packages/system/src/hotkey/type.ts b/packages/system/src/hotkey/type.ts
new file mode 100644
index 0000000..ca09f7c
--- /dev/null
+++ b/packages/system/src/hotkey/type.ts
@@ -0,0 +1,111 @@
+import { KeyCode } from './keyCodes';
+
+export const enum HotkeyEmitType {
+    /** 由按键按下触发 */
+    KeyDown,
+    /** 由按键抬起触发 */
+    KeyUp
+}
+
+export interface IHotkeyEmitContext {
+    /** 按键触发方式 */
+    readonly type: HotkeyEmitType;
+    /** 触发此指令的按键 */
+    readonly key: KeyCode;
+    /** 当前所有正在按下的按键，按照按下的顺序排列，注意如果是抬起事件触发的，那么这里面并不会包含触发事件的那个按键 */
+    readonly holding: KeyCode[];
+    /** 当前是否按下了 Ctrl 按键 */
+    readonly ctrl: boolean;
+    /** 当前是否按下了 Shift 按键 */
+    readonly shift: boolean;
+    /** 当前是否按下了 Alt 按键 */
+    readonly alt: boolean;
+    /** 当前是否按下了 Windows(Windows) / Command(MacOS) 按键 */
+    readonly meta: boolean;
+}
+
+export interface IHotkeyEmitInfo {
+    /** 按键指令标识符 */
+    readonly command: string;
+    /** 触发此按键指令的按键组合对应索引 */
+    readonly index: number;
+    /** 触发此按键指令的按键组合 */
+    readonly keys: KeyCode[];
+    /** 按键触发上下文 */
+    readonly context: IHotkeyEmitContext;
+}
+
+export interface IHotkeyCommand {
+    /** 当前指令可以被多少种按键组合触发 */
+    readonly length: number;
+
+    /**
+     * 设置此按键组合数量，如果小于当前值，会导致某些按键触发组合被删除
+     * @param count 按键组合数量
+     */
+    setKeys(count: number): void;
+
+    /**
+     * 设置触发此按键指令的按键组合
+     * @param index 按键组合索引
+     * @param keys 按键组合
+     */
+    setKeyCombination(index: number, keys: KeyCode[]): void;
+
+    /**
+     * 获取指定索引的按键组合，如果组合不存在返回空数组
+     * @param index 按键组合索引
+     */
+    getKeyCombination(index: number): KeyCode[];
+
+    /**
+     * 迭代所有的按键组合
+     */
+    iterateKeyCombinations(): Iterable<[index: number, key: KeyCode[]][]>;
+}
+
+export interface IHotkeySystem {
+    /**
+     * 进入新的按键作用域
+     */
+    enterScope(): symbol;
+
+    /**
+     * 离开按键作用域
+     * @param sym 指定离开的作用域，不填时默认退出到上一级
+     */
+    leaveScope(sym?: symbol): void;
+
+    /**
+     * 获取指定的按键指令对象
+     * @param command 按键指令标识符
+     */
+    getCommand(command: string): IHotkeyCommand | null;
+
+    /**
+     * 添加新的按键指令
+     * @param command 按键指令标识符
+     */
+    addCommand(command: string): IHotkeyCommand;
+
+    /**
+     * 删除指定按键指令
+     * @param command 按键指令标识符
+     */
+    deleteCommand(command: string): void;
+
+    /**
+     * 实现按键的触发函数，仅在当前作用域生效
+     * @param command 按键指令标识符
+     * @param func 按键的触发函数
+     */
+    implement(command: string, func: (ctx: IHotkeyEmitContext) => void): void;
+
+    /**
+     * 触发指定按键命令
+     * @param command 按键指令标识符
+     * @param context 按键的上下文信息
+     * @returns 是否执行成功，如果按键命令不存在或上下文条件无法触发指定按键指令，会返回 `false`
+     */
+    emit(command: string, context: IHotkeyEmitContext): boolean;
+}
diff --git a/packages/system/src/index.ts b/packages/system/src/index.ts
index 390ffdf..bd24437 100644
--- a/packages/system/src/index.ts
+++ b/packages/system/src/index.ts
@@ -1,2 +1,2 @@
-export * from './action';
+export * from './hotkey';
 export * from './ui';