diff --git a/apps/assets/api/__init__.py b/apps/assets/api/__init__.py
index 186ab10b7..8ae0cd9bd 100644
--- a/apps/assets/api/__init__.py
+++ b/apps/assets/api/__init__.py
@@ -6,4 +6,5 @@ from .label import *
 from .mixin import *
 from .node import *
 from .platform import *
+from .protocol import *
 from .tree import *
diff --git a/apps/assets/api/category.py b/apps/assets/api/category.py
index b7317e231..242840716 100644
--- a/apps/assets/api/category.py
+++ b/apps/assets/api/category.py
@@ -2,8 +2,8 @@ from rest_framework.decorators import action
 from rest_framework.mixins import ListModelMixin
 from rest_framework.response import Response
 
-from assets.const import AllTypes, Protocol
-from assets.serializers import CategorySerializer, TypeSerializer, ProtocolSerializer
+from assets.const import AllTypes
+from assets.serializers import CategorySerializer, TypeSerializer
 from common.api import JMSGenericViewSet
 from common.permissions import IsValidUser
 
@@ -14,7 +14,6 @@ class CategoryViewSet(ListModelMixin, JMSGenericViewSet):
     serializer_classes = {
         'default': CategorySerializer,
         'types': TypeSerializer,
-        'protocols': ProtocolSerializer,
     }
     permission_classes = (IsValidUser,)
 
@@ -33,8 +32,3 @@ class CategoryViewSet(ListModelMixin, JMSGenericViewSet):
         tp = request.query_params.get('type')
         constraints = AllTypes.get_constraints(category, tp)
         return Response(constraints)
-
-    @action(methods=['get'], detail=False)
-    def protocols(self, request, *args, **kwargs):
-        protocols = list(Protocol.protocols())
-        return self.get_paginated_response_from_queryset(protocols)
diff --git a/apps/assets/api/protocol.py b/apps/assets/api/protocol.py
new file mode 100644
index 000000000..ea440791d
--- /dev/null
+++ b/apps/assets/api/protocol.py
@@ -0,0 +1,15 @@
+from rest_framework.generics import ListAPIView
+
+from assets import serializers
+from assets.const import Protocol
+from common.permissions import IsValidUser
+
+__all__ = ['ProtocolListApi']
+
+
+class ProtocolListApi(ListAPIView):
+    serializer_class = serializers.ProtocolSerializer
+    permission_classes = (IsValidUser,)
+
+    def get_queryset(self):
+        return list(Protocol.protocols())
diff --git a/apps/assets/serializers/cagegory.py b/apps/assets/serializers/cagegory.py
index dc46f4964..df6264ee1 100644
--- a/apps/assets/serializers/cagegory.py
+++ b/apps/assets/serializers/cagegory.py
@@ -22,4 +22,3 @@ class CategorySerializer(serializers.Serializer):
 class ProtocolSerializer(serializers.Serializer):
     label = serializers.CharField(max_length=64, required=False, allow_blank=True, label=_('Label'))
     value = serializers.CharField(max_length=64, required=False, allow_blank=True, label=_('Value'))
-    category = serializers.CharField(max_length=64, required=False, allow_blank=True, label=_('Category'))
diff --git a/apps/assets/urls/api_urls.py b/apps/assets/urls/api_urls.py
index 983e077f0..5644d7dc0 100644
--- a/apps/assets/urls/api_urls.py
+++ b/apps/assets/urls/api_urls.py
@@ -26,6 +26,7 @@ router.register(r'protocol-settings', api.PlatformProtocolViewSet, 'protocol-set
 
 urlpatterns = [
     # path('assets/<uuid:pk>/gateways/', api.AssetGatewayListApi.as_view(), name='asset-gateway-list'),
+    path('protocols/', api.ProtocolListApi.as_view(), name='asset-protocol'),
     path('assets/<uuid:pk>/tasks/', api.AssetTaskCreateApi.as_view(), name='asset-task-create'),
     path('assets/tasks/', api.AssetsTaskCreateApi.as_view(), name='assets-task-create'),
     path('assets/<uuid:pk>/perm-users/', api.AssetPermUserListApi.as_view(), name='asset-perm-user-list'),
diff --git a/apps/perms/serializers/user_permission.py b/apps/perms/serializers/user_permission.py
index 96853cff7..9f7f89cee 100644
--- a/apps/perms/serializers/user_permission.py
+++ b/apps/perms/serializers/user_permission.py
@@ -70,6 +70,7 @@ class AccountsPermedSerializer(serializers.ModelSerializer):
 
 
 class AssetPermedDetailSerializer(AssetPermedSerializer):
+    # 前面特意加了 permed，避免返回的是资产本身的
     permed_protocols = AssetProtocolsPermsSerializer(many=True, required=False, label=_('Protocols'))
     permed_accounts = AccountsPermedSerializer(label=_("Accounts"), required=False, many=True)