diff --git a/api/@ohos.net.statistics.d.ts b/api/@ohos.net.statistics.d.ts
index c5db7867dfcd900f4f751a1d68ce61d12da01db9..f085e9f8d0fe697305c40fd53112089a0fce257e 100644
--- a/api/@ohos.net.statistics.d.ts
+++ b/api/@ohos.net.statistics.d.ts
@@ -699,6 +699,48 @@ declare namespace statistics {
     info: NetStatsInfo;
   }[];
 
+  /**
+   * Array of {@link NetStatsInfoSequenceItem}.
+   * @syscap SystemCapability.Communication.NetManager.Core
+   * @systemapi Hide this for inner system use.
+   * @since 20 static
+   */
+  export type NetStatsInfoSequence = Array<NetStatsInfoSequenceItem>;
+
+  /**
+   * Parameters for an {@link NetStatsInfo} with start time and end time.
+   * @interface NetStatsInfoSequenceItem
+   * @syscap SystemCapability.Communication.NetManager.Core
+   * @systemapi Hide this for inner system use.
+   * @since 20 static
+   */
+  export interface NetStatsInfoSequenceItem {
+    /**
+     * Start time for querying traffic.
+     * @type { int }
+     * @syscap SystemCapability.Communication.NetManager.Core
+     * @systemapi Hide this for inner system use.
+     * @since 20 static
+     */
+    startTime: int;
+    /**
+     * End time for querying traffic.
+     * @type { int }
+     * @syscap SystemCapability.Communication.NetManager.Core
+     * @systemapi Hide this for inner system use.
+     * @since 20 static
+     */
+    endTime: int;
+    /**
+     * Detailed information of statistics.
+     * @type { NetStatsInfo }
+     * @syscap SystemCapability.Communication.NetManager.Core
+     * @systemapi Hide this for inner system use.
+     * @since 20 static
+     */
+    info: NetStatsInfo;
+  }
+
   /**
    * {@link NetStatsInfo} for every UID. Key is UID.
    * @syscap SystemCapability.Communication.NetManager.Core
@@ -798,6 +840,7 @@ declare namespace statistics {
    * @syscap SystemCapability.Communication.NetManager.Core
    * @systemapi Hide this for inner system use.
    * @since 12 dynamic
+   * @since 20 static
    */
   function getTrafficStatsByUidNetwork(uid: int, networkInfo: NetworkInfo): Promise<NetStatsInfoSequence>;
 }