diff --git a/api/@ohos.multimodalInput.inputConsumer.d.ts b/api/@ohos.multimodalInput.inputConsumer.d.ts
old mode 100755
new mode 100644
index e10019666ddd9e967e9eefb947365fc997357501..86798b19356679d96e43505cfa842bf863ef49ce
--- a/api/@ohos.multimodalInput.inputConsumer.d.ts
+++ b/api/@ohos.multimodalInput.inputConsumer.d.ts
@@ -21,6 +21,7 @@ import { Callback } from './basic';
  * @since 8
  * @syscap SystemCapability.MultimodalInput.Input.InputConsumer
  * @import import inputConsumer from '@ohos.multimodalInput.inputConsumer';
+ * @systemapi hide for inner use
  * @permission N/A
  */
 
@@ -29,6 +30,7 @@ declare namespace inputConsumer {
      * Defines event of key that user want to subscribe or unsubscribe.
      *
      * @syscap SystemCapability.MultimodalInput.Input.InputConsumer
+     * @systemapi hide for inner use
      * @param preKeys The pre-keys that want to subscribe or unsubscribe.
      * @param finalKey The post position key that want to subscribe or unsubscribe.
      * @param isFinalKeyDown The final key press down or up.
@@ -46,6 +48,7 @@ declare namespace inputConsumer {
      *
      * @since 8
      * @syscap SystemCapability.MultimodalInput.Input.InputConsumer
+     * @systemapi hide for inner use
      * @permission N/A
      * @param type type of the inputevent about input which is to be subscribed.
      * @param keyOption the key events about input which is to be subscribed.
@@ -58,6 +61,7 @@ declare namespace inputConsumer {
      *
      * @since 8
      * @syscap SystemCapability.MultimodalInput.Input.InputConsumer
+     * @systemapi hide for inner use
      * @permission N/A
      * @param type type of the inputevent about input which is to be subscribed.
      * @param keyOption the key events about input which is to be subscribed.
diff --git a/api/@ohos.multimodalInput.inputDevice.d.ts b/api/@ohos.multimodalInput.inputDevice.d.ts
old mode 100755
new mode 100644
diff --git a/api/@ohos.multimodalInput.inputEventClient.d.ts b/api/@ohos.multimodalInput.inputEventClient.d.ts
new file mode 100644
index 0000000000000000000000000000000000000000..de09ecc84e0a627f3237bdb34ddb02a8359d88b2
--- /dev/null
+++ b/api/@ohos.multimodalInput.inputEventClient.d.ts
@@ -0,0 +1,56 @@
+/*
+* Copyright (C) 2021 Huawei Device Co., Ltd.
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+ /**
+ * Global Key Event Injection
+ *
+ * @since 8
+ * @syscap SystemCapability.MultimodalInput.Input.InputEventClient
+ * @import import inputEventClient from '@ohos.multimodalInput.inputEventClient';
+ * @systemapi hide for inner use
+ * @permission N/A
+ */
+
+declare namespace inputEventClient {
+    /**
+     * Defines event of key that user want to inject.
+     *
+     * @syscap SystemCapability.MultimodalInput.Input.InputEventClient
+     * @systemapi hide for inner use
+     * @param isPressed The status of key.
+     * @param keyCode The keyCode value of key.
+     * @param keyDownDuration Key hold duration.
+     * @param isIntercepted Whether the key is blocked.
+     */
+    interface KeyEvent {
+        isPressed: boolean,
+        keyCode: number;
+        keyDownDuration: number;
+        isIntercepted: boolean;
+    }
+
+    /**
+     * Inject system keys.
+     *
+     * @since 8
+     * @syscap SystemCapability.MultimodalInput.Input.InputEventClient
+     * @systemapi hide for inner use
+     * @permission N/A
+     * @param KeyEvent the key event to be injected.
+     */
+    function injectEvent({KeyEvent: KeyEvent}): void;
+}
+
+export default inputEventClient;
\ No newline at end of file