diff --git a/users/views.py b/users/views.py
index 3c10136..d51fbe5 100644
--- a/users/views.py
+++ b/users/views.py
@@ -4,7 +4,7 @@ from django.shortcuts import get_object_or_404
 
 from rest_framework.views import APIView
 from rest_framework.viewsets import ReadOnlyModelViewSet
-from rest_framework_simplejwt.serializers import TokenObtainPairSerializer, TokenRefreshSerializer
+from rest_framework_simplejwt.serializers import TokenObtainPairSerializer, TokenRefreshSerializer, TokenObtainSerializer
 from rest_framework_simplejwt.tokens import RefreshToken
 from rest_framework_simplejwt.exceptions import TokenError, InvalidToken
 
@@ -53,8 +53,12 @@ class JoinAPIView(APIView):
     def post(self, request):
         serializer = JoinSerializer(data=request.data)
         if serializer.is_valid():
-            serializer.save()
-            res = Response({"message": "회원가입이 완료되었습니다."}, status=status.HTTP_200_OK)
+            user = serializer.save()
+            access = str(RefreshToken.for_user(user).access_token)
+            res = Response({
+                "message": "회원가입이 완료되었습니다.",
+                "access": access
+                }, status=status.HTTP_200_OK)
             return res
         return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
     
@@ -95,18 +99,22 @@ class LoginAPIView(APIView):
         else: # id, 비번 둘 중 하나가 틀렸을 때
             return Response({"message": "아이디 혹은 비밀번호가 맞지 않습니다."}, status=status.HTTP_400_BAD_REQUEST)
 
-class NicknameAPIView(APIView):
+class CheckUserFieldDuplicateAPIView(APIView):
     permission_classes = [AllowAny]
-    # 닉네임 중복 체크
+    # 유저 필드 중복 확인
     def get(self, request):
-        nickname = request.GET.get('nickname', None)
-        if not nickname:
-            return Response({"message": "닉네임을 입력하세요."}, status=status.HTTP_400_BAD_REQUEST)
+        field = request.query_params.get('field')
+        value = request.query_params.get('value')
+        if not field or not value:
+            return Response({"message": "올바르지 않은 요청입니다."}, status=status.HTTP_400_BAD_REQUEST)
         try:
-            get_object_or_404(User, nickname=nickname)
-            return Response({"message": "해당 닉네임은 사용할 수 없습니다."}, status=status.HTTP_400_BAD_REQUEST)
-        except:
-            return Response({"message": "사용할 수 있는 닉네임입니다."}, status=status.HTTP_200_OK)
+            if CheckUserFieldDuplicateService.check_duplicate(field, value):
+                return Response({"message": f"존재하는 {field} 입니다."}, status=status.HTTP_400_BAD_REQUEST)
+            else:
+                return Response({"message": f"사용해도 되는 {field} 입니다."}, status=status.HTTP_200_OK)
+        except ValueError as e:
+            return Response({"message": str(e)}, status=status.HTTP_400_BAD_REQUEST)
+
         
 class TagUserAPIView(APIView):
     def get(self, request):