diff --git a/multimodalinput/kits/c/input/oh_input_manager.h b/multimodalinput/kits/c/input/oh_input_manager.h
index 3cade9b3acd9c554a23a10edc32e00c7ca1a6193..9e11c55233d272049e82d455d9ce8483419c3db9 100644
--- a/multimodalinput/kits/c/input/oh_input_manager.h
+++ b/multimodalinput/kits/c/input/oh_input_manager.h
@@ -208,6 +208,13 @@ typedef struct Input_TouchEvent Input_TouchEvent;
  */
 typedef struct Input_AxisEvent Input_AxisEvent;
 
+/**
+ * @brief Defines the hot key structure.
+ *
+ * @since 13
+ */
+typedef struct Input_Hotkey Input_Hotkey;
+
 /**
  * @brief Enumerates error codes.
  *
@@ -1214,6 +1221,113 @@ Input_Result OH_Input_RemoveInputEventInterceptor(void);
  */
 Input_Result OH_Input_GetIntervalSinceLastInput(int64_t *timeInterval);
 
+/**
+ * @brief Creates a hot key object.
+ *
+ * @return Returns an {@Link Input_Hotkey} pointer object if the operation is successful. Otherwise, a null pointer is
+ * returned. The possible cause is memory allocation failure.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 13
+ */
+Input_Hotkey *OH_Input_CreateHotkey(void);
+
+/**
+ * @brief Destroys a hot key object.
+ *
+ * @param hotkey Hot key object.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 13
+ */
+void OH_Input_DestroyHotkey(Input_Hotkey **hotkey);
+
+/**
+ * @brief Sets a modifier key.
+ *
+ * @param hotkey Hotkey key object.
+ * @param preKeys List of modifier keys.
+ * @param size Number of modifier keys. One or two modifier keys are supported.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 13
+ */
+void OH_Input_SetPreKeys(Input_Hotkey *hotkey, int32_t *preKeys, int32_t size);
+
+/**
+ * @brief Obtains a modifier key.
+ *
+ * @param hotkey Hotkey key object.
+ * @param preKeys List of modifier keys.
+ * @param preKeyCount Number of modifier keys.
+ * @return OH_Input_GetPreKeys status code, specifically,
+ *         {@link INPUT_SUCCESS} if the operation is successful;\n
+ *         {@link INPUT_PARAMETER_ERROR} The hotkey is NULL or the pressedKeys is NULL or the pressedKeyCount
+ *         is NULL.\n
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 13
+ */
+Input_Result OH_Input_GetPreKeys(const Input_Hotkey *hotkey, int32_t **preKeys, int32_t *preKeyCount);
+
+/**
+ * @brief Sets a modified key.
+ *
+ * @param hotkey Hotkey key object.
+ * @param finalKey Modified key. Only one modified key is supported.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 13
+ */
+void OH_Input_SetFinalKey(Input_Hotkey *hotkey, int32_t finalKey);
+
+/**
+ * @brief Obtains a modified key.
+ *
+ * @param hotkey Hotkey key object.
+ * @param finalKeyCode Returns the key value of the decorated key.
+ * @return OH_Input_GetfinalKey status code, specifically,
+ *         {@link INPUT_SUCCESS} if the operation is successful;\n
+ *         {@link INPUT_PARAMETER_ERROR} The hotkey is NULL or the finalKeyCode is NULL.\n
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 13
+ */
+Input_Result OH_Input_GetFinalKey(const Input_Hotkey *hotkey, int32_t *finalKeyCode);
+
+/**
+ * @brief Creates an array of {@Link Input_Hotkey} instances.
+ *
+ * @param count Number of {@Link Input_Hotkey} instances to be created. The count must be the same as the number of
+ * system shortcut keys.
+ * @return Returns a pointer to an array of {@Link Input_Hotkey} instances if the operation is successful. If the
+ * operation fails, a null pointer is returned. The possible cause is memory allocation failure or count is not equal
+ * to the number of system hotkeys.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 13
+ */
+Input_Hotkey **OH_Input_CreateAllSystemHotkeys(int32_t count);
+
+/**
+ * @brief Destroys an array of {@link Input_Hotkey} instances and reclaims memory.
+ *
+ * @param hotkeys Pointer to an array of {@Link Input_Hotkey } instances created by the
+ * {@Link OH_Input_CreateAllSystemHotkeys} method.
+ * @param count Count of the array to be destroyed, which must be the same as the number of system shortcut keys.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 13
+ */
+void OH_Input_DestroyAllSystemHotkeys(Input_Hotkey **hotkeys, int32_t count);
+
+/**
+ * @brief Obtains all hot keys supported by the system.
+ *
+ * @param hotkey Array of {@Link Input_Hotkey} instances.
+ * When calling this API for the first time, you can pass NULL to obtain the array length.
+ * @param count Number of hot keys supported by the system.
+ * @return OH_Input_GetAllSystemHotkeys status code, specifically,
+ *         {@link INPUT_SUCCESS} if the operation is successful;\n
+ *         {@link INPUT_PARAMETER_ERROR} The hotkey or count is NULL, or the value of count does not match the number
+ *         of system shortcut keys supported by the system.
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 13
+ */
+Input_Result OH_Input_GetAllSystemHotkeys(Input_Hotkey **hotkey, int32_t *count);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/multimodalinput/kits/c/ohinput.ndk.json b/multimodalinput/kits/c/ohinput.ndk.json
index cfbe993aee96320e1a73e14d8367836b29bd1ad1..60da3d2a8693d8710cb5e5a35efc29fa3157a6c1 100644
--- a/multimodalinput/kits/c/ohinput.ndk.json
+++ b/multimodalinput/kits/c/ohinput.ndk.json
@@ -314,5 +314,45 @@
     {
         "first_introduced": "12",
         "name": "OH_Input_RemoveInputEventInterceptor"
+    },
+    {
+        "first_introduced": "13",
+        "name": "OH_Input_GetIntervalSinceLastInput"
+    },
+    {
+        "first_introduced": "13",
+        "name": "OH_Input_CreateAllSystemHotkeys"
+    },
+    {
+        "first_introduced": "13",
+        "name": "OH_Input_DestroyAllSystemHotkeys"
+    },
+    {
+        "first_introduced": "13",
+        "name": "OH_Input_GetAllSystemHotkeys"
+    },
+    {
+        "first_introduced": "13",
+        "name": "OH_Input_CreateHotkey"
+    },
+    {
+        "first_introduced": "13",
+        "name": "OH_Input_DestroyHotkey"
+    },
+    {
+        "first_introduced": "13",
+        "name": "OH_Input_SetPreKeys"
+    },
+    {
+        "first_introduced": "13",
+        "name": "OH_Input_GetPreKeys"
+    },
+    {
+        "first_introduced": "13",
+        "name": "OH_Input_SetFinalKey"
+    },
+    {
+        "first_introduced": "13",
+        "name": "OH_Input_GetFinalKey"
     }
 ]
\ No newline at end of file