diff --git a/interfaces/inner_api/notification_activity_content.h b/interfaces/inner_api/notification_activity_content.h
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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.
+ */
+
+#ifndef BASE_NOTIFICATION_DISTRIBUTED_NOTIFICATION_SERVICE_INTERFACES_INNER_API_NOTIFICATION_ACTIVITY_CONTENT_H
+#define BASE_NOTIFICATION_DISTRIBUTED_NOTIFICATION_SERVICE_INTERFACES_INNER_API_NOTIFICATION_ACTIVITY_CONTENT_H
+
+#include "notification_basic_content.h"
+#include "parcel.h"
+#include "want_params.h"
+
+namespace OHOS {
+namespace Notification {
+class NotificationActivityContent : public NotificationBasicContent {
+public:
+    enum class ActivityStatus {
+        ACTIVITY_CREATE,
+        ACTIVITY_BATCH_UPDATE,
+        ACTIVITY_END,
+        ACTIVITY_FULL_UPDATE,
+        ACTIVITY_BUTT
+    };
+
+    NotificationActivityContent() = default;
+
+    ~NotificationActivityContent() = default;
+
+    /**
+     * @brief Set the status of the activity notification.
+     *
+     * @param status Indicates the status of activity notification.
+     */
+    void SetActivityStatus(const ActivityStatus status);
+
+    /**
+     * @brief Obtains the status of the activity notification.
+     *
+     * @return Returns the status that attached to this notification.
+     */
+    ActivityStatus GetActivityStatus() const;
+
+    /**
+     * @brief Set the version of the activity notification.
+     *
+     * @param status Indicates the version of activity notification.
+     */
+    void SetVersion(const uint64_t version);
+
+    /**
+     * @brief Obtains the version of the activity notification.
+     *
+     * @return Returns the version that attached to this notification.
+     */
+    uint64_t GetVersion() const;
+
+    /**
+     * @brief Sets extra parameters that are stored as key-value pairs for the notification content.
+     *
+     * @param extras Indicates the WantParams object containing the extra parameters in key-value pair format.
+     */
+    void SetExtraInfo(const std::shared_ptr<AAFwk::WantParams> &extras);
+
+    /**
+     * @brief Obtains the WantParams object set in the notification content.
+     *
+     * @return Returns the WantParams object.
+     */
+    const std::shared_ptr<AAFwk::WantParams> GetExtraInfo() const;
+
+    /**
+     * @brief Returns a string representation of the object.
+     *
+     * @return Returns a string representation of the object.
+     */
+    std::string Dump() override;
+
+    /**
+     * @brief Converts a NotificationActivityContent object into a Json.
+     *
+     * @param jsonObject Indicates the Json object.
+     * @return Returns true if succeed; returns false otherwise.
+     */
+    virtual bool ToJson(nlohmann::json &jsonObject) const override;
+
+    /**
+     * @brief Creates a NotificationActivityContent object from a Json.
+     *
+     * @param jsonObject Indicates the Json object.
+     * @return Returns the NotificationActivityContent object.
+     */
+    static NotificationActivityContent *FromJson(const nlohmann::json &jsonObject);
+
+    /**
+     * @brief Marshal a object into a Parcel.
+     * @param parcel the object into the parcel.
+     * @return Returns true if succeed; returns false otherwise.
+     */
+    virtual bool Marshalling(Parcel &parcel) const override;
+
+    /**
+     * @brief Unmarshal object from a Parcel.
+     *
+     * @param parcel Indicates the parcel object.
+     * @return Returns the NotificationActivityContent object.
+     */
+    static NotificationActivityContent *Unmarshalling(Parcel &parcel);
+
+protected:
+    /**
+     * @brief Read a NotificationActivityContent object from a Parcel.
+     *
+     * @param parcel Indicates the parcel object.
+     * @return Returns true if succeed; returns false otherwise.
+     */
+    bool ReadFromParcel(Parcel &parcel) override;
+
+private:
+    ActivityStatus activityStatus_;
+    uint32_t version_;
+    std::shared_ptr<AAFwk::WantParams> extraInfo_ {};
+};
+}  // namespace Notification
+}  // namespace OHOS
+
+#endif  // BASE_NOTIFICATION_DISTRIBUTED_NOTIFICATION_SERVICE_INTERFACES_INNER_API_NOTIFICATION_ACTIVITY_CONTENT_H