diff --git a/apps/jumpserver/conf.py b/apps/jumpserver/conf.py
index 6491b13ce..01af7ec96 100644
--- a/apps/jumpserver/conf.py
+++ b/apps/jumpserver/conf.py
@@ -290,7 +290,7 @@ class Config(dict):
         'AUTH_LDAP_START_TLS': False,
         'AUTH_LDAP_USER_ATTR_MAP': {"username": "cn", "name": "sn", "email": "mail"},
         'AUTH_LDAP_CONNECT_TIMEOUT': 10,
-        'AUTH_LDAP_CACHE_TIMEOUT': 3600 * 24 * 30,
+        'AUTH_LDAP_CACHE_TIMEOUT': 0,
         'AUTH_LDAP_SEARCH_PAGED_SIZE': 1000,
         'AUTH_LDAP_SYNC_IS_PERIODIC': False,
         'AUTH_LDAP_SYNC_INTERVAL': None,
@@ -310,7 +310,7 @@ class Config(dict):
         'AUTH_LDAP_HA_START_TLS': False,
         'AUTH_LDAP_HA_USER_ATTR_MAP': {"username": "cn", "name": "sn", "email": "mail"},
         'AUTH_LDAP_HA_CONNECT_TIMEOUT': 10,
-        'AUTH_LDAP_HA_CACHE_TIMEOUT': 3600 * 24 * 30,
+        'AUTH_LDAP_HA_CACHE_TIMEOUT': 0,
         'AUTH_LDAP_HA_SEARCH_PAGED_SIZE': 1000,
         'AUTH_LDAP_HA_SYNC_IS_PERIODIC': False,
         'AUTH_LDAP_HA_SYNC_INTERVAL': None,
diff --git a/apps/settings/serializers/auth/ldap.py b/apps/settings/serializers/auth/ldap.py
index be022a659..7bfd78e55 100644
--- a/apps/settings/serializers/auth/ldap.py
+++ b/apps/settings/serializers/auth/ldap.py
@@ -85,7 +85,7 @@ class LDAPSettingSerializer(serializers.Serializer):
     )
     AUTH_LDAP_CACHE_TIMEOUT = serializers.IntegerField(
         min_value=0, max_value=3600 * 24 * 30 * 12,
-        default=3600 * 24 * 30,
+        default=0,
         required=False, label=_('User DN cache timeout (s)'),
         help_text=_(
             'Caching the User DN obtained during user login authentication can effectively '
diff --git a/apps/settings/serializers/auth/ldap_ha.py b/apps/settings/serializers/auth/ldap_ha.py
index c653beeda..6b78682b2 100644
--- a/apps/settings/serializers/auth/ldap_ha.py
+++ b/apps/settings/serializers/auth/ldap_ha.py
@@ -67,7 +67,7 @@ class LDAPHASettingSerializer(serializers.Serializer):
     )
     AUTH_LDAP_HA_CACHE_TIMEOUT = serializers.IntegerField(
         min_value=0, max_value=3600 * 24 * 30 * 12,
-        default=3600 * 24 * 30,
+        default=0,
         required=False, label=_('User DN cache timeout (s)'),
         help_text=_(
             'Caching the User DN obtained during user login authentication can effectively'