diff --git a/api/@ohos.application.StaticSubscriberExtension.d.ts b/api/@ohos.application.StaticSubscriberExtension.d.ts
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+++ b/api/@ohos.application.StaticSubscriberExtension.d.ts
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+/*
+ * Copyright (c) 2022 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.
+ */
+
+import CommonEventData from "./commonEvent/commonEventData";
+
+/**
+ * class of static subscriber extension.
+ *
+ * @since 8
+ * @sysCap AAFwk
+ * @devices phone, tablet, tv, wearable, car
+ */
+export default class StaticSubscriberExtension {
+    /**
+     * Called back when a specific common event is published.
+     *
+     * @devices phone, tablet, tv, wearable, car
+     * @since 8
+     * @sysCap AAFwk
+     * @systemapi hide for inner use.
+     * @return -
+     */
+    onCommonEventTriggered(event: CommonEventData): void;
+}
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