diff --git a/codes/services.py b/codes/services.py
index 0ffe8ad..7b6693c 100644
--- a/codes/services.py
+++ b/codes/services.py
@@ -10,16 +10,25 @@ from rest_framework.views import APIView
 from rest_framework.response import Response
 from rest_framework import status
 
-from .models import CertificationCode
+from .models import *
 
-from common.models.choiceModels import CertificateCodeUseType
+from common.models.choiceModels import CertificateCodeUseType, InviteCodeUseType
 from common.utils.codeManger import set_expire
 
 from solapi import SolapiMessageService
 from solapi.model import RequestMessage
 
+from users.models import User
+
+from projects.models import Project, ProjectTeamList
+
 # from .schemas import send_sms_post_schema  # Swagger나 drf-spectacular 등에 사용되는 데코레이터
 
+INVITE_CHOICE_USE_TYPE ={
+    'p': InviteCodeUseType.PROJECT,
+    'h': InviteCodeUseType.HACKATHON
+}
+
 class CertificateService:
     @staticmethod
     def send(code, identifier):
@@ -79,4 +88,46 @@ class SmsService(CertificateService):
             return True
         except Exception as e:
             # print(f"메시지 발송 실패: {str(e)}")
-            return False
\ No newline at end of file
+            return False
+        
+
+class InviteService:
+    
+    # 종류마다 사용하는 테이블이 다르므로 오버라이딩
+    @staticmethod
+    def add_member(invitee, work):
+        pass
+
+    # url 생성
+    @staticmethod
+    def create_invite_object_and_url(use_type, identifier, code) -> str:
+        InviteCode.objects.create(
+            use_type = INVITE_CHOICE_USE_TYPE[use_type],
+            code = code,
+            expire_at = set_expire(10080),
+            identifier = identifier,
+        )
+        return f"https://{settings.DOMAIN_NAME}/invite?t={use_type}&i={identifier}&c={code}"
+
+    # 코드 유효성 검사
+    @staticmethod
+    def check_code(use_type, identifier, code) -> bool:
+        if InviteCode.objects.filter(
+            use_type = INVITE_CHOICE_USE_TYPE[use_type],
+            identifier = identifier,
+            code = code,
+            expire_at__gte=now()
+            ).exists():
+            return True
+        else:
+            return False
+            
+
+class ProjectInviteService(InviteService):
+
+    # 사용자 초대
+    @staticmethod
+    def add_member(invitee: User, work: Project):
+        return ProjectTeamList.objects.create(user=invitee, project=work)
+        
+