diff --git a/seahub/api2/endpoints/internal_api.py b/seahub/api2/endpoints/internal_api.py
index 7f5fe35c56a..bdcb7bdc467 100644
--- a/seahub/api2/endpoints/internal_api.py
+++ b/seahub/api2/endpoints/internal_api.py
@@ -14,9 +14,6 @@
 from seaserv import seafile_api
 from seahub.utils.repo import parse_repo_perm
 from seahub.views.file import send_file_access_msg
-from seahub.utils.user_permissions import get_user_role
-from seahub.role_permissions.settings import DEFAULT_ENABLED_ROLE_PERMISSIONS
-from seahub.utils.file_size import get_quota_from_string
 
 logger = logging.getLogger(__name__)
 
@@ -201,26 +198,3 @@ def post(self, request, repo_id):
             return api_error(status.HTTP_403_FORBIDDEN, error_msg)
 
         return Response({'user': rat.app_name})
-
-
-class InternalDownloadRateLimitView(APIView):
-    authentication_classes = (SessionCRSFCheckFreeAuthentication, )
-
-    def post(self, request):
-        auth = request.META.get('HTTP_AUTHORIZATION', '').split()
-        is_valid = is_valid_internal_jwt(auth)
-        if not is_valid:
-            error_msg = 'Permission denied.'
-            return api_error(status.HTTP_403_FORBIDDEN, error_msg)
-
-        traffic_info_dict = {}
-        for role, v in DEFAULT_ENABLED_ROLE_PERMISSIONS.items():
-            rate_limit = {}
-            if 'monthly_rate_limit' in v:
-                monthly_rate_limit = get_quota_from_string(v['monthly_rate_limit'])
-                rate_limit['monthly_rate_limit'] = monthly_rate_limit
-            if 'monthly_rate_limit_per_user' in v:
-                monthly_rate_limit_per_user = get_quota_from_string(v['monthly_rate_limit_per_user'])
-                rate_limit['monthly_rate_limit_per_user'] = monthly_rate_limit_per_user
-            traffic_info_dict[role] = rate_limit
-        return Response(traffic_info_dict)
diff --git a/seahub/role_permissions/settings.py b/seahub/role_permissions/settings.py
index 358d4b10930..479ea6fd371 100644
--- a/seahub/role_permissions/settings.py
+++ b/seahub/role_permissions/settings.py
@@ -46,8 +46,6 @@ def merge_roles(default, custom):
         'can_publish_repo': True,
         'upload_rate_limit': 0,
         'download_rate_limit': 0,
-        'monthly_rate_limit': '',
-        'monthly_rate_limit_per_user': ''
     },
     GUEST_USER: {
         'can_add_repo': False,
@@ -70,8 +68,6 @@ def merge_roles(default, custom):
         'can_publish_repo': False,
         'upload_rate_limit': 0,
         'download_rate_limit': 0,
-        'monthly_rate_limit': '',
-        'monthly_rate_limit_per_user': ''
     },
 }
 
diff --git a/seahub/urls.py b/seahub/urls.py
index f4f7f5ae7b7..508a7fb9a4f 100644
--- a/seahub/urls.py
+++ b/seahub/urls.py
@@ -5,7 +5,7 @@
 from seahub.ai.apis import ImageCaption, GenerateSummary, ImageTags
 from seahub.api2.endpoints.share_link_auth import ShareLinkUserAuthView, ShareLinkEmailAuthView
 from seahub.api2.endpoints.internal_api import InternalUserListView, InternalCheckShareLinkAccess, \
-    InternalCheckFileOperationAccess, InternalDownloadRateLimitView
+    InternalCheckFileOperationAccess
 from seahub.auth.views import multi_adfs_sso, login_simple_check
 from seahub.views import *
 from seahub.views.mobile import mobile_login
@@ -791,7 +791,6 @@
     re_path(r'^api/v2.1/internal/user-list/$', InternalUserListView.as_view(), name="api-v2.1-internal-user-list"),
     re_path(r'^api/v2.1/internal/check-share-link-access/$', InternalCheckShareLinkAccess.as_view(), name="api-v2.1-internal-share-link-info"),
     re_path(r'^api/v2.1/internal/repos/(?P<repo_id>[-0-9a-f]{36})/check-access/$', InternalCheckFileOperationAccess.as_view(), name="api-v2.1-internal-check-file-op-access"),
-    re_path(r'^api/v2.1/internal/download-limit/$', InternalDownloadRateLimitView.as_view(), name='api-v2.1-internal-download-limit'),
 
     ### system admin ###
     re_path(r'^sys/seafadmin/delete/(?P<repo_id>[-0-9a-f]{36})/$', sys_repo_delete, name='sys_repo_delete'),
diff --git a/seahub/utils/file_size.py b/seahub/utils/file_size.py
index 8e09f416514..89061e1e0f5 100644
--- a/seahub/utils/file_size.py
+++ b/seahub/utils/file_size.py
@@ -48,8 +48,6 @@ def get_quota_from_string(quota_str):
         quota = int(quota_str[:-1]) * get_file_size_unit('gb')
     elif quota_str.endswith('m'):
         quota = int(quota_str[:-1]) * get_file_size_unit('mb')
-    elif quota_str.endswith('k'):
-        quota = int(quota_str[:-1]) * get_file_size_unit('kb')
     else:
         return None
 
diff --git a/tests/seahub/role_permissions/test_utils.py b/tests/seahub/role_permissions/test_utils.py
index 2b0fd748e6d..4f0a03a780b 100644
--- a/tests/seahub/role_permissions/test_utils.py
+++ b/tests/seahub/role_permissions/test_utils.py
@@ -11,4 +11,4 @@ def test_get_available_role(self):
         assert DEFAULT_USER in get_available_roles()
 
     def test_get_enabled_role_permissions_by_role(self):
-        assert len(list(get_enabled_role_permissions_by_role(DEFAULT_USER).keys())) == 22
+        assert len(list(get_enabled_role_permissions_by_role(DEFAULT_USER).keys())) == 20