diff --git a/tools-v2/README.md b/tools-v2/README.md
index 290c0a6c50..8127b3e77c 100644
--- a/tools-v2/README.md
+++ b/tools-v2/README.md
@@ -56,6 +56,7 @@ A tool for CurveFS & CurveBs.
       - [delete peer](#delete-peer)
     - [update](#update)
       - [update peer](#update-peer)
+    - [clean-recycle](#clean-recycle)
   - [Comparison of old and new commands](#comparison-of-old-and-new-commands)
     - [curve fs](#curve-fs)
     - [curve bs](#curve-bs)
@@ -909,6 +910,26 @@ Output:
 +------+------+----------------+-------+--------+---------+--------+-----+---------------------+--------------+---------+-----------------+----------+
 ```
 
+### clean-recycle
+
+clean the recycle bin 
+
+Usage:
+
+```bash
+curve bs clean-recycle --recycleprefix=/test --expiredtime=1h
+```
+
+Output:
+
+```bash
++---------+--------+
+| RESULT  | REASON |
++---------+--------+
+| success |        |
++---------+--------+
+```
+
 ### status
 
 #### staus etcd