diff --git a/multimodalinput/kits/c/input/oh_input_manager.h b/multimodalinput/kits/c/input/oh_input_manager.h
index 10da9574b5cd30f966a9a6bacb5d6e7668337a36..8721edaa6e8a8038c07dd59251c0fc7d42bac62a 100644
--- a/multimodalinput/kits/c/input/oh_input_manager.h
+++ b/multimodalinput/kits/c/input/oh_input_manager.h
@@ -1441,6 +1441,19 @@ Input_Result OH_Input_UnregisterDeviceListener(Input_DeviceListener* listener);
  * @since 13
  */
 Input_Result OH_Input_UnregisterDeviceListeners();
+
+/**
+ * @brief Obtains the interval since the last system input event.
+ *
+ * @param timeInterval Interval, in microseconds.
+ * @return OH_Input_GetIntervalSinceLastInput status code, specifically.
+ *         {@Link INPUT_SUCCESS} if the Operation is successful.\n
+ *         {@Link INPUT_SERVICE_EXCEPTION} Failed to get the interval because the service is exception.\n
+ *         {@Link INPUT_PARAMETER_ERROR} The timeInterval is NULL.\n
+ * @syscap SystemCapability.MultimodalInput.Input.Core
+ * @since 14
+ */
+Input_Result OH_Input_GetIntervalSinceLastInput(int64_t *timeInterval);
 #ifdef __cplusplus
 }
 #endif
diff --git a/multimodalinput/kits/c/ohinput.ndk.json b/multimodalinput/kits/c/ohinput.ndk.json
index c0c017a2f9bac8dcdc984b67f7c878627be22c1f..3dd39653061b48604ce544967dab97985d802b62 100644
--- a/multimodalinput/kits/c/ohinput.ndk.json
+++ b/multimodalinput/kits/c/ohinput.ndk.json
@@ -374,5 +374,9 @@
     {
         "first_introduced": "13",
         "name": "OH_Input_UnregisterDeviceListeners"
+    },
+    {
+        "first_introduced": "14",
+        "name": "OH_Input_GetIntervalSinceLastInput"
     }
 ]