diff --git a/api/phone/@ohos.hiAppEvent.d.ts b/api/phone/@ohos.hiAppEvent.d.ts
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+/*
+ * 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.
+ */
+
+import { AsyncCallback } from './basic';
+
+/**
+ * Provides the event logging function for applications to log the fault, statistical, security,
+ * and user behavior events reported during running. Based on event information,
+ * you will be able to analyze the running status of applications.
+ *
+ * @since 7
+ * @devices phone, tablet, tv, wearable
+ */
+declare namespace hiAppEvent {
+    /**
+     * Enumerate application event types.
+     */
+    enum EventType {
+        /**
+         * Fault event.
+         */
+        FAULT = 1,
+
+        /**
+         * Statistic event.
+         */
+        STATISTIC = 2,
+
+        /**
+         * Security event.
+         */
+        SECURITY = 3,
+
+        /**
+         * User behavior event.
+         */
+        BEHAVIOR = 4
+    }
+
+    /**
+     * Preset event.
+     */
+    namespace Event {
+        /**
+         * user login event.
+         */
+        const USER_LOGIN: string;
+
+        /**
+         * user logout event.
+         */
+        const USER_LOGOUT: string;
+
+        /**
+         * distributed service event.
+         */
+        const DISTRIBUTED_SERVICE_START: string;
+    }
+
+    /**
+     * Preset param.
+     */
+    namespace Param {
+        /**
+         * user id.
+         */
+        const USER_ID: string;
+
+        /**
+         * distributed service name.
+         */
+        const DISTRIBUTED_SERVICE_NAME: string;
+
+        /**
+         * distributed service instance id.
+         */
+        const DISTRIBUTED_SERVICE_INSTANCE_ID: string;
+    }
+
+    /**
+     * write application event.
+     *
+     * @static
+     * @param {string} eventName application event name.
+     * @param {EventType} eventType application event type.
+     * @param {object} keyValues application event key-value pair params.
+     * @param {AsyncCallback} [callback] callback function.
+     * @return {void | Promise<void>} no callback return Promise otherwise return void.
+     */
+    function write(eventName: string, eventType: EventType, keyValues: object): Promise<void>;
+    function write(eventName: string, eventType: EventType, keyValues: object, callback: AsyncCallback<void>): void;
+
+    /**
+     * application event logging configuration interface.
+     *
+     * @static
+     * @param {ConfigOption} config application event logging configuration item object.
+     * @return {boolean} configuration result.
+     */
+    function configure(config: ConfigOption): boolean;
+
+    interface ConfigOption {
+        /**
+         * configuration item: application event logging switch.
+         */
+        disable?: boolean;
+
+        /**
+         * configuration item: event file directory storage quota size.
+         */
+        maxStorage?: string;
+    }
+}
+
+export default hiAppEvent;
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