diff --git a/注解使用.md b/注解使用.md
index 64f587e..ce61aba 100644
--- a/注解使用.md
+++ b/注解使用.md
@@ -54,6 +54,16 @@
 | `@DownloadGroup.onTaskFail` | 任务失败时的注解，任务执行失败时进行回调 | `@DownloadGroup.onTaskFail void taskFail(DownloadGroupTask task) {}` |
 | ` @DownloadGroup.onTaskComplete` | 任务完成时的注解，任务完成时进行回调 | ` @DownloadGroup.onTaskComplete void taskComplete(DownloadGroupTask task) {}` |
 
+## 任务组子任务注解
+| 注解 | 说明 | 示例 |
+| ------| ------ | ------ |
+| `@DownloadGroup.onSubTaskRunning` | 任务组子任务下载中时回调 | `@DownloadGroup.onSubTaskRunning void onSubTaskRunning(DownloadGroupTask groupTask, DownloadEntity subEntity) {}` |
+| `@DownloadGroup.onSubTaskPre` | 任务组子任务预处理时回调 | `@DownloadGroup.onSubTaskPre void onSubTaskRunning(DownloadGroupTask groupTask, DownloadEntity subEntity) {}` |
+| `@DownloadGroup.onSubTaskStop` | 任务组子任务停止时回调 | `@DownloadGroup.onSubTaskStop void onSubTaskRunning(DownloadGroupTask groupTask, DownloadEntity subEntity) {}` |
+| `@DownloadGroup.onSubTaskStart` | 任务组子任务开始下载时回调 | `@DownloadGroup.onSubTaskStart void onSubTaskRunning(DownloadGroupTask groupTask, DownloadEntity subEntity) {}` |
+| `@DownloadGroup.onSubTaskComplete` | 任务组子任务完成时时回调 | `@DownloadGroup.onSubTaskComplete void onSubTaskRunning(DownloadGroupTask groupTask, DownloadEntity subEntity) {}` |
+| `@DownloadGroup.onSubTaskFail` | 任务组子任务执行失败时回调 | `@DownloadGroup.onSubTaskFail void onSubTaskRunning(DownloadGroupTask groupTask, DownloadEntity subEntity) {}` |
+
 ## HTTP\FTP单任务上传注解
 | 注解 | 说明 | 示例 |
 | ------| ------ | ------ |