diff --git a/README.md b/README.md
index 3bf32bd..75768b5 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,9 @@ with SynologyDrive(NAS_USER, NAS_PASS, NAS_IP, NAS_PORT) as synd:
 # use http instead of https. https: default is True.
 with SynologyDrive(NAS_USER, NAS_PASS, NAS_IP, https=False) as synd:
     pass
+# Enable 2fa.
+with SynologyDrive(NAS_USER, NAS_PASS, otp_code='XXXXXX') as synd:
+    pass
 # use domain name or name + path access drive
 # Enabled in Application Portal | Application | Drive | General | Enable customized alias
 drive_path_demo = 'your_nas_domain/drive'
diff --git a/pyproject.toml b/pyproject.toml
index 72bc9d8..014a474 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "synology_drive_api"
-version = "1.0.10"
+version = "1.0.11"
 description = "synology drive api python wrapper"
 authors = ["zbjdonald <zbjdonald@qq.com>"]
 license = "MIT"
diff --git a/synology_drive_api/base.py b/synology_drive_api/base.py
index 3a86f8a..950097e 100644
--- a/synology_drive_api/base.py
+++ b/synology_drive_api/base.py
@@ -131,6 +131,7 @@ class SynologySession:
     """
     _username: str
     _password: str
+    _otp_code: str
     # api base url
     _base_url: str
     # sid token
@@ -139,7 +140,7 @@ class SynologySession:
     _session_expire: bool = True
     # dsm version, used for login api version
     dsm_version: str = '6'
-    max_retry: int = 3
+    max_retry: int = 2
 
     def __init__(self,
                  username: str,
@@ -149,12 +150,14 @@ class SynologySession:
                  nas_domain: Optional[str] = None,
                  https: Optional[bool] = True,
                  dsm_version: str = '6',
-                 max_retry: int = 3) -> None:
+                 max_retry: int = 2,
+                 otp_code: Optional[str] = None) -> None:
         assert dsm_version in ('6', '7'), "dsm_version should be either '6' or '7'."
 
         nas_address = concat_nas_address(ip_address, port, nas_domain, https)
         self._username = username
         self._password = password
+        self._otp_code = otp_code
         self.dsm_version = dsm_version
         self._base_url = f"{nas_address}/webapi/"
         self.req_session.cookies.set_policy(BlockAll())
@@ -243,6 +246,9 @@ class SynologySession:
         login_api_version = '2' if self.dsm_version == '6' else '3'
         params = {'api': 'SYNO.API.Auth', 'version': login_api_version, 'method': 'login', 'account': self._username,
                   'passwd': self._password, 'session': application, 'format': 'cookie'}
+        if self._otp_code is not None:
+            params['otp_code'] = self._otp_code
+
         if not self._session_expire:
             if self._sid is not None:
                 self._session_expire = False
diff --git a/synology_drive_api/drive.py b/synology_drive_api/drive.py
index b1df251..1959512 100644
--- a/synology_drive_api/drive.py
+++ b/synology_drive_api/drive.py
@@ -21,8 +21,10 @@ class SynologyDrive(LabelsMixin, FilesMixin, TasksMixin):
                  https: bool = True,
                  enable_label_cache: bool = True,
                  dsm_version: str = '6',
-                 max_retry: int = 10) -> None:
-        self.session = SynologySession(username, password, ip_address, port, nas_domain, https, dsm_version, max_retry)
+                 max_retry: int = 2,
+                 otp_code: Optional[str] = None) -> None:
+        self.session = SynologySession(username, password, ip_address, port, nas_domain, https, dsm_version, max_retry,
+                                       otp_code)
         self.enable_label_cache = enable_label_cache
 
     def __enter__(self):