diff --git a/README.md b/README.md
index 7cebfae..1a1560c 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,17 @@ see the [action.yml](./action.yml) file for more detail imformation.
 * overwrite - use `--overwrite` flag with tar
 * tar_tmp_path - temporary path for tar file on the dest host
 
+SSH Proxy Setting:
+
+* proxy_host - proxy host
+* proxy_port - proxy port, default is `22`
+* proxy_username - proxy username
+* proxy_password - proxy password
+* proxy_passphrase - the passphrase is usually to encrypt the private key
+* proxy_timeout - timeout for ssh to proxy host, default is `30s`
+* proxy_key - content of ssh proxy private key.
+* proxy_key_path - path of ssh proxy private key
+
 ### Example
 
 Copy file via ssh password
diff --git a/action.yml b/action.yml
index 1c5afeb..d55300b 100644
--- a/action.yml
+++ b/action.yml
@@ -37,6 +37,24 @@ inputs:
     default: false
   tar_tmp_path:
     description: 'temporary path for tar file on the dest host'
+  proxy_host:
+    description: 'ssh proxy remote host'
+  proxy_port:
+    description: 'ssh proxy remote port'
+    default: 22
+  proxy_username:
+    description: 'ssh proxy username'
+  proxy_password:
+    description: 'ssh proxy password'
+  proxy_passphrase:
+    description: 'ssh proxy key passphrase'
+  proxy_timeout:
+    description: 'timeout for ssh to proxy host'
+    default: "30s"
+  proxy_key:
+    description: 'content of ssh proxy private key. ex raw content of ~/.ssh/id_rsa'
+  proxy_key_path:
+    description: 'path of ssh proxy private key'
 runs:
   using: 'docker'
   image: 'Dockerfile'