diff --git a/apps/jumpserver/conf.py b/apps/jumpserver/conf.py
index 9beb2954a..75978ea41 100644
--- a/apps/jumpserver/conf.py
+++ b/apps/jumpserver/conf.py
@@ -142,7 +142,6 @@ class Config(dict):
         'AUTH_OPENID_CLIENT_SECRET': '',
         'AUTH_OPENID_IGNORE_SSL_VERIFICATION': True,
         'AUTH_OPENID_SHARE_SESSION': True,
-        'CAS_ROOT_PROXIED_AS': '',
 
         'AUTH_RADIUS': False,
         'RADIUS_SERVER': 'localhost',
@@ -153,6 +152,7 @@ class Config(dict):
 
         'AUTH_CAS': False,
         'CAS_SERVER_URL': "http://host/cas/",
+        'CAS_ROOT_PROXIED_AS': '',
         'CAS_LOGOUT_COMPLETELY': True,
         'CAS_VERSION': 3,
 
diff --git a/config_example.yml b/config_example.yml
index 321668a7f..5699f4ff0 100644
--- a/config_example.yml
+++ b/config_example.yml
@@ -64,7 +64,7 @@ REDIS_PORT: 6379
 # AUTH_OPENID_CLIENT_SECRET: client-secret
 # AUTH_OPENID_IGNORE_SSL_VERIFICATION: True
 # AUTH_OPENID_SHARE_SESSION: True
-#
+
 # Use Radius authorization
 # 使用Radius来认证
 # AUTH_RADIUS: false
@@ -72,6 +72,13 @@ REDIS_PORT: 6379
 # RADIUS_PORT: 1812
 # RADIUS_SECRET: 
 
+# CAS 配置
+# AUTH_CAS': False,
+# CAS_SERVER_URL': "http://host/cas/",
+# CAS_ROOT_PROXIED_AS': 'http://jumpserver-host:port',  
+# CAS_LOGOUT_COMPLETELY': True,
+# CAS_VERSION': 3,
+
 # LDAP/AD settings
 # LDAP 搜索分页数量
 # AUTH_LDAP_SEARCH_PAGED_SIZE: 1000