diff --git a/multimedia/player_framework/avplayer.h b/multimedia/player_framework/avplayer.h
index 0939a6516453772642bb0d9e7c08cdc292cdef5c..9c4287565409b73eb6e56c7b77cfe99d14004d01 100644
--- a/multimedia/player_framework/avplayer.h
+++ b/multimedia/player_framework/avplayer.h
@@ -71,6 +71,20 @@ typedef struct DRM_MediaKeySystemInfo DRM_MediaKeySystemInfo;
  */
 typedef void (*Player_MediaKeySystemInfoCallback)(OH_AVPlayer *player, DRM_MediaKeySystemInfo* mediaKeySystemInfo);
 
+/**
+ * @brief Call back will be invoked when updating subtitle information.
+ * @param player Pointer to an OH_AVPlayer instance.
+ * @param text subtitle info's text.
+ * @param pts subtitle info's pts.
+ * @param duration subtitle info's duration.
+ * @param userData userData.
+ * @return {@link AV_ERR_OK} if the playback is started; otherwise returns an error code defined
+ * in {@link native_averrors.h} otherwise.
+ * @since 12
+ * @version 1.0
+ */
+typedef void (*OH_AVPlayerOnSubtitleUpdate)(OH_AVPlayer *player, const char *text, int32_t *pts,  int32_t *duration, void *userData);
+
 /**
  * @brief Create a player
  * @syscap SystemCapability.Multimedia.Media.AVPlayer