diff --git a/Async-Backup.md b/Async-Backup.md
index 84bd53e..972fa78 100644
--- a/Async-Backup.md
+++ b/Async-Backup.md
@@ -9,6 +9,9 @@ Of course, you can also backup to local disks on another machine.
 
 # Architecture
 
+![SeaweedFS Architecture](https://raw.githubusercontent.com/chrislusf/seaweedfs/master/note/SeaweedFS_Filer_Backup.png)
+
+
 ```
                     Metadata Changes
         Filer  -----------------------> `weed filer.backup` -----> AWS S3