diff --git a/api/@ohos.calendarManager.d.ts b/api/@ohos.calendarManager.d.ts
index 067e0d955fcb9f368c2ce49285ce58cebaadecf0..579a6d245c8fc7b6125967561943474e7c150b1b 100644
--- a/api/@ohos.calendarManager.d.ts
+++ b/api/@ohos.calendarManager.d.ts
@@ -343,6 +343,14 @@ declare namespace calendarManager {
      * @syscap SystemCapability.Applications.CalendarData
      * @since 10
      */
+    /**
+     * Delete a single event.
+     * @param { number } id - Indicates the ID of an event.
+     * @param {AsyncCallback<void>} callback - The callback of deleteEvent.
+     * @syscap SystemCapability.Applications.CalendarData
+     * @atomicservice
+     * @since 19
+     */
     deleteEvent(id: number, callback: AsyncCallback<void>): void;
 
     /**
@@ -361,6 +369,14 @@ declare namespace calendarManager {
      * @syscap SystemCapability.Applications.CalendarData
      * @since 10
      */
+    /**
+     * Delete multiple events.
+     * @param { number[] } ids - Indicates the IDs of multiple events.
+     * @param {AsyncCallback<void>} callback - The callback of deleteEvents.
+     * @syscap SystemCapability.Applications.CalendarData
+     * @atomicservice
+     * @since 19
+     */
     deleteEvents(ids: number[], callback: AsyncCallback<void>): void;
 
     /**