diff --git a/multimodalinput/kits/c/input/oh_input_manager.h b/multimodalinput/kits/c/input/oh_input_manager.h
index 7d02e48a13a8aa3d7c3b540c7a2fb0eeacc00d2c..99ed777202da1fe817c30acab7d59c3e3798774c 100644
--- a/multimodalinput/kits/c/input/oh_input_manager.h
+++ b/multimodalinput/kits/c/input/oh_input_manager.h
@@ -61,6 +61,66 @@ enum Input_KeyStateAction {
     KEY_SWITCH_OFF = 3
 };
 
+/**
+ * @brief Enumerated values of mouse event action.
+ *
+ * @since 12
+ */
+typedef enum {
+    /** Cancel. */
+    MOUSE_ACTION_CANCEL = 0,
+    /** Moving of the mouse pointer. */
+    MOUSE_ACTION_MOVE = 1,
+    /** Pressing down of the mouse. */
+    MOUSE_ACTION_BUTTON_DOWN = 2,
+    /** Lifting of the mouse button. */
+    MOUSE_ACTION_BUTTON_UP = 3,
+    /** Pressing down of the mouse touch pad. */
+    MOUSE_ACTION_ACTION_DOWN = 4,
+    /** Lifting of the mouse touch pad. */
+    MOUSE_ACTION_ACTION_UP = 5
+} Input_MouseEventAction;
+
+/**
+ * @brief Enumerated values of mouse event button.
+ *
+ * @since 12
+ */
+typedef enum {
+    /** Left button on the mouse. */
+    MOUSE_BUTTON_LEFT = 0,
+    /** Middle button on the mouse. */
+    MOUSE_BUTTON_MIDDLE = 1,
+    /** Right button on the mouse. */
+    MOUSE_BUTTON_RIGHT = 2,
+    /** Side button on the mouse. */
+    MOUSE_BUTTON_SIDE = 3,
+    /** Extended button on the mouse. */
+    MOUSE_BUTTON_EXTRA = 4,
+    /** Forward button on the mouse. */
+    MOUSE_BUTTON_FORWARD = 5,
+    /** Back button on the mouse. */
+    MOUSE_BUTTON_BACK = 6,
+    /** Task key on the mouse. */
+    MOUSE_BUTTON_TASK = 7
+} Input_MouseEventButton;
+
+/**
+ * @brief Enumerated values of touch event action.
+ *
+ * @since 12
+ */
+typedef enum {
+    /** Touch cancelled. */
+    TOUCH_ACTION_CANCEL = 0,
+    /** Touch pressed. */
+    TOUCH_ACTION_DOWN = 1,
+    /** Touch moved. */
+    TOUCH_ACTION_MOVE = 2,
+    /** Touch lifted. */
+    TOUCH_ACTION_UP = 3,
+} Input_TouchEventAction;
+
 /**
  * @brief Defines key information, which identifies a key pressing behavior. For example, the Ctrl key information contains the key value and key type.
  *
@@ -68,6 +128,27 @@ enum Input_KeyStateAction {
  */
 struct Input_KeyState;
 
+/**
+ * @brief The key event to be injected.
+ *
+ * @since 12
+ */
+struct Input_KeyEvent;
+
+/**
+ * @brief The mouse event to be injected.
+ *
+ * @since 12
+ */
+struct Input_MouseEvent;
+
+/**
+ * @brief The touch event to be injected.
+ *
+ * @since 12
+ */
+struct Input_TouchEvent;
+
 /**
  * @brief Enumerates the error codes.
  *
@@ -107,16 +188,16 @@ struct Input_KeyState* OH_Input_CreateKeyState();
 
 /**
  * @brief Destroys a key status enumeration object.
- * 
+ *
  * @param keyState Key status enumeration object.
  * @syscap SystemCapability.MultimodalInput.Input.Core
  * @since 12
  */
-void OH_Input_DestroyKeyState(struct Input_KeyState* keyState);
+void OH_Input_DestroyKeyState(struct Input_KeyState** keyState);
 
 /**
  * @brief Sets the key value of a key status enumeration object.
- * 
+ *
  * @param keyState Key status enumeration object.
  * @param keyCode Key value of the key status enumeration object.
  * @syscap SystemCapability.MultimodalInput.Input.Core
@@ -126,7 +207,7 @@ void OH_Input_SetKeyCode(struct Input_KeyState* keyState, int32_t keyCode);
 
 /**
  * @brief Obtains the key value of a key status enumeration object.
- * 
+ *
  * @param keyState Key status enumeration object.
  * @return Key value of the key status enumeration object.
  * @syscap SystemCapability.MultimodalInput.Input.Core
@@ -136,7 +217,7 @@ int32_t OH_Input_GetKeyCode(struct Input_KeyState* keyState);
 
 /**
  * @brief Sets whether the key specific to a key status enumeration object is pressed.
- * 
+ *
  * @param keyState Key status enumeration object.
  * @param keyAction Whether the key is pressed.
  * @syscap SystemCapability.MultimodalInput.Input.Core
@@ -146,7 +227,7 @@ void OH_Input_SetKeyPressed(struct Input_KeyState* keyState, int32_t keyAction);
 
 /**
  * @brief Checks whether the key specific to a key status enumeration object is pressed.
- * 
+ *
  * @param keyState Key status enumeration object.
  * @return Key pressing status of the key status enumeration object.
  * @syscap SystemCapability.MultimodalInput.Input.Core
@@ -156,7 +237,7 @@ int32_t OH_Input_GetKeyPressed(struct Input_KeyState* keyState);
 
 /**
  * @brief Sets the key switch of the key status enumeration object.
- * 
+ *
  * @param keyState Key status enumeration object.
  * @param keySwitch Key switch of the key status enumeration object.
  * @syscap SystemCapability.MultimodalInput.Input.Core
@@ -166,7 +247,7 @@ void OH_Input_SetKeySwitch(struct Input_KeyState* keyState, int32_t keySwitch);
 
 /**
  * @brief Obtains the key switch of the key status enumeration object.
- * 
+ *
  * @param keyState Key status enumeration object.
  * @return Key switch of the key status enumeration object.
  * @syscap SystemCapability.MultimodalInput.Input.Core
@@ -174,6 +255,341 @@ void OH_Input_SetKeySwitch(struct Input_KeyState* keyState, int32_t keySwitch);
  */
 int32_t OH_Input_GetKeySwitch(struct Input_KeyState* keyState);
 
+/**
+ * @brief Inject system keys.
+ *
+ * @param keyEvent - the key event to be injected.
+ * @return 0 - Success.
+ *         201 - Missing permissions.
+ *         401 - Parameter error.
+ * @permission systemapi hide for inner use
+ * @syscap SystemCapability.MultimodalInput.Input.InputSimulator
+ * @since 12
+ */
+int32_t OH_Input_InjectKeyEvent(struct Input_KeyEvent* keyEvent);
+
+/**
+ * @brief 创建按键事件对象
+ *
+ * @return Returns an {@link Input_KeyEvent} pointer object if the operation is successful.
+ * returns a null pointer otherwise.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+struct Input_KeyEvent* OH_Input_CreateKeyEvent();
+
+/**
+ * @brief 销毁按键事件对象
+ *
+ * @param keyEvent 按键事件对象
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_DestroyKeyEvent(struct Input_KeyEvent** keyEvent);
+
+/**
+ * @brief 设置按键事件的是否按下
+ *
+ * @param keyEvent 按键事件对象
+ * @param isPressed 按键是否按下
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetKeyEventIsPressed(struct Input_KeyEvent* keyEvent, bool isPressed);
+
+/**
+ * @brief 获取按键事件的是否按下
+ *
+ * @param keyEvent 按键事件对象
+ * @return 按键是否按下
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+bool OH_Input_GetKeyEventIsPressed(struct Input_KeyEvent* keyEvent);
+
+/**
+ * @brief 设置按键事件的键值
+ *
+ * @param keyEvent 按键事件对象
+ * @param keyCode 按键的键值
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetKeyEventKeyCode(struct Input_KeyEvent* keyEvent, int32_t keyCode);
+
+/**
+ * @brief 获取按键事件的键值
+ *
+ * @param keyEvent 按键事件对象
+ * @return 按键的键值
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetKeyEventKeyCode(struct Input_KeyEvent* keyEvent);
+
+/**
+ * @brief Inject mouse event.
+ *
+ * @param mouseEvent - the mouse event to be injected.
+ * @return 0 - Success.
+ *         201 - Missing permissions.
+ *         401 - Parameter error.
+ * @permission systemapi hide for inner use
+ * @syscap SystemCapability.MultimodalInput.Input.InputSimulator
+ * @since 12
+ */
+int32_t OH_Input_InjectMouseEvent(struct Input_MouseEvent* mouseEvent);
+
+/**
+ * @brief 创建鼠标事件对象
+ *
+ * @return Returns an {@link Input_MouseEvent} pointer object if the operation is successful.
+ * returns a null pointer otherwise.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+struct Input_MouseEvent* OH_Input_CreateMouseEvent();
+
+/**
+ * @brief 销毁鼠标事件对象
+ *
+ * @param mouseEvent 鼠标事件对象
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_DestroyMouseEvent(struct Input_MouseEvent** mouseEvent);
+
+/**
+ * @brief 设置鼠标事件的动作
+ *
+ * @param mouseEvent 鼠标事件对象
+ * @param action 鼠标的动作
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetMouseEventAction(struct Input_MouseEvent* mouseEvent, int32_t action);
+
+/**
+ * @brief 获取鼠标事件的动作
+ *
+ * @param mouseEvent 鼠标事件对象
+ * @return 鼠标的动作
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetMouseEventAction(struct Input_MouseEvent* mouseEvent);
+
+/**
+ * @brief 设置鼠标事件的屏幕横坐标
+ *
+ * @param mouseEvent 鼠标事件对象
+ * @param screenX 屏幕横坐标
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetMouseEventScreenX(struct Input_MouseEvent* mouseEvent, int32_t screenX);
+
+/**
+ * @brief 获取鼠标事件的屏幕横坐标
+ *
+ * @param mouseEvent 鼠标事件对象
+ * @return 屏幕横坐标
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetMouseEventScreenX(struct Input_MouseEvent* mouseEvent);
+
+/**
+ * @brief 设置鼠标事件的屏幕纵坐标
+ *
+ * @param mouseEvent 鼠标事件对象
+ * @param screenY 屏幕纵坐标
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetMouseEventScreenY(struct Input_MouseEvent* mouseEvent, int32_t screenY);
+
+/**
+ * @brief 获取鼠标事件的屏幕纵坐标
+ *
+ * @param mouseEvent 鼠标事件对象
+ * @return 屏幕纵坐标
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetMouseEventScreenY(struct Input_MouseEvent* mouseEvent);
+
+/**
+ * @brief 设置鼠标事件的按键
+ *
+ * @param mouseEvent 鼠标事件对象
+ * @param button 按键
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetMouseEventButton(struct Input_MouseEvent* mouseEvent, int32_t button);
+
+/**
+ * @brief 获取鼠标事件的屏幕按键
+ *
+ * @param mouseEvent 鼠标事件对象
+ * @return 按键
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetMouseEventButton(struct Input_MouseEvent* mouseEvent);
+
+/**
+ * @brief Inject touch event.
+ *
+ * @param touchEvent - the touch event to be injected.
+ * @return 0 - Success.
+ *         201 - Missing permissions.
+ *         401 - Parameter error.
+ * @permission systemapi hide for inner use
+ * @syscap SystemCapability.MultimodalInput.Input.InputSimulator
+ * @since 12
+ */
+int32_t OH_Input_InjectTouchEvent(struct Input_TouchEvent* touchEvent);
+
+/**
+ * @brief 创建触屏事件对象
+ *
+ * @return Returns an {@link Input_TouchEvent} pointer object if the operation is successful.
+ * returns a null pointer otherwise.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+struct Input_TouchEvent* OH_Input_CreateTouchEvent();
+
+/**
+ * @brief 销毁触屏事件对象
+ *
+ * @param touchEvent 触屏事件对象
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_DestroyTouchEvent(struct Input_TouchEvent** touchEvent);
+
+/**
+ * @brief 设置触屏事件的动作
+ *
+ * @param touchEvent 触屏事件对象
+ * @param action 触屏的动作
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetTouchEventAction(struct Input_TouchEvent* touchEvent, int32_t action);
+
+/**
+ * @brief 获取触屏事件的动作
+ *
+ * @param touchEvent 触屏事件对象
+ * @return 触屏的动作
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetTouchEventAction(struct Input_TouchEvent* touchEvent);
+
+/**
+ * @brief 设置触屏事件的手指ID
+ *
+ * @param touchEvent 触屏事件对象
+ * @param id 触屏的手指ID
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetTouchEventId(struct Input_TouchEvent* touchEvent, int32_t id);
+
+/**
+ * @brief 获取触屏事件的手指ID
+ *
+ * @param touchEvent 触屏事件对象
+ * @return 触屏的手指ID
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetTouchEventId(struct Input_TouchEvent* touchEvent);
+
+/**
+ * @brief 设置触屏事件的屏幕横坐标
+ *
+ * @param touchEvent 触屏事件对象
+ * @param screenX 触屏的屏幕横坐标
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetTouchEventScreenX(struct Input_TouchEvent* touchEvent, int32_t screenX);
+
+/**
+ * @brief 获取触屏事件的屏幕横坐标
+ *
+ * @param touchEvent 触屏事件对象
+ * @return 触屏的屏幕横坐标
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetTouchEventScreenX(struct Input_TouchEvent* touchEvent);
+
+/**
+ * @brief 设置触屏事件的屏幕纵坐标
+ *
+ * @param touchEvent 触屏事件对象
+ * @param screenY 触屏的屏幕纵坐标
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetTouchEventScreenY(struct Input_TouchEvent* touchEvent, int32_t screenY);
+
+/**
+ * @brief 获取触屏事件的屏幕纵坐标
+ *
+ * @param touchEvent 触屏事件对象
+ * @return 触屏的屏幕纵坐标
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+int32_t OH_Input_GetTouchEventScreenY(struct Input_TouchEvent* touchEvent);
+
+/**
+ * @brief 设置触屏事件的手指压力
+ *
+ * @param touchEvent 触屏事件对象
+ * @param pressure 触屏的手指压力
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_SetTouchEventPressure(struct Input_TouchEvent* touchEvent, double pressure);
+
+/**
+ * @brief 获取触屏事件的手指压力
+ *
+ * @param touchEvent 触屏事件对象
+ * @return 触屏的手指压力
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+double OH_Input_GetTouchEventPressure(struct Input_TouchEvent* touchEvent);
+
+/**
+ * @brief 取消注入
+ *
+ * @HTTP4O4 Returns {@Link Input_Result#INPUT_SUCCESS} if the operation is successful;
+ * returns an error code defined in {@Link Input_Result} otherwise.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+Input_Result OH_Input_CancelInjection();
+
+/**
+ * @brief 授权权限，只有授权hap可以调用
+ *
+ * @param isAuthorize 是否同意授权
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 12
+ */
+void OH_Input_Authorize(bool isAuthorize);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/multimodalinput/kits/c/ohinput.ndk.json b/multimodalinput/kits/c/ohinput.ndk.json
index 137265940516a56ad1120c613e8bb2cf0e1f494a..23b28c4f729a0cae257d8c9769515ebf958979d2 100644
--- a/multimodalinput/kits/c/ohinput.ndk.json
+++ b/multimodalinput/kits/c/ohinput.ndk.json
@@ -15,7 +15,7 @@
         "first_introduced": "12",
         "name": "OH_Input_SetKeyCode"
     },
-    { 
+    {
         "first_introduced": "12",
         "name": "OH_Input_GetKeyCode"
     },
@@ -34,5 +34,137 @@
     {
         "first_introduced": "12",
         "name": "OH_Input_GetKeySwitch"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_InjectKeyEvent"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_CreateKeyEvent"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_DestroyKeyEvent"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetKeyEventIsPressed"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetKeyEventIsPressed"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetKeyEventKeyCode"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetKeyEventKeyCode"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_InjectMouseEvent"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_CreateMouseEvent"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_DestroyMouseEvent"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetMouseEventAction"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetMouseEventAction"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetMouseEventScreenX"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetMouseEventScreenX"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetMouseEventScreenY"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetMouseEventScreenY"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetMouseEventButton"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetMouseEventButton"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_InjectTouchEvent"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_CreateTouchEvent"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_DestroyTouchEvent"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetTouchEventAction"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetTouchEventAction"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetTouchEventID"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetTouchEventID"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetTouchEventScreenX"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetTouchEventScreenX"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetTouchEventScreenY"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetTouchEventScreenY"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_SetTouchEventPressure"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_GetTouchEventPressure"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_CancelInjection"
+    },
+    {
+        "first_introduced": "12",
+        "name": "OH_Input_Authorize"
     }
 ]
\ No newline at end of file