diff --git a/api/@ohos.commonEventManager.d.ts b/api/@ohos.commonEventManager.d.ts
index c62395b69066727856df336b3b4d1e63b7742241..12fa64d5930eafc315de73cf979e57b0dd6dfd9a 100644
--- a/api/@ohos.commonEventManager.d.ts
+++ b/api/@ohos.commonEventManager.d.ts
@@ -937,6 +937,28 @@ declare namespace commonEventManager {
      */
     COMMON_EVENT_USER_UNLOCKED = 'usual.event.USER_UNLOCKED',
 
+    /**
+     * Indicates the target user (i.e the OS account) is going to be locked.
+     * This is a protected common event that can only be sent by system.
+     *
+     * @syscap SystemCapability.Notification.CommonEvent
+     * @systemapi
+     * @since 20
+     * @arkts 1.1&1.2
+     */
+    COMMON_EVENT_USER_LOCKING = 'usual.event.USER_LOCKING',
+
+    /**
+     * Indicates the target user (i.e the OS account) is locked.
+     * This is a protected common event that can only be sent by system.
+     *
+     * @syscap SystemCapability.Notification.CommonEvent
+     * @systemapi
+     * @since 20
+     * @arkts 1.1&1.2
+     */
+    COMMON_EVENT_USER_LOCKED = 'usual.event.USER_LOCKED',
+
     /**
      * Remind new user of that the service has been stopping.
      *