diff --git a/backend/app/auth/signup_routes.py b/backend/app/auth/signup_routes.py
index 29771e1..618f26a 100644
--- a/backend/app/auth/signup_routes.py
+++ b/backend/app/auth/signup_routes.py
@@ -78,12 +78,12 @@ async def signup_request(
             'password': hashed_password,  # 필드명은 'password'
             'name': signup_data.name,
             'email': signup_data.email,
-            'access_level': 'pending',  # 승인 대기
+            'access_level': 'worker',  # 기본 레벨 (승인 시 변경 가능)
             'department': signup_data.department,
             'position': signup_data.position,
             'phone': signup_data.phone,
             'role': 'user',
-            'is_active': False  # 비활성 상태
+            'is_active': False  # 비활성 상태로 승인 대기 표시
         })
         
         # 가입 사유 저장 (notes 컬럼 활용)
@@ -130,13 +130,13 @@ async def get_signup_requests(
                 detail="관리자만 접근 가능합니다"
             )
         
-        # 승인 대기 중인 사용자 조회
+        # 승인 대기 중인 사용자 조회 (is_active=False인 사용자)
         query = text("""
             SELECT 
-                id, username, name, email, department, position, 
+                user_id as id, username, name, email, department, position, 
                 phone, notes, created_at
             FROM users
-            WHERE access_level = 'pending' AND is_active = FALSE
+            WHERE is_active = FALSE
             ORDER BY created_at DESC
         """)
         
@@ -203,8 +203,8 @@ async def approve_signup(
             SET is_active = TRUE,
                 access_level = :access_level,
                 updated_at = CURRENT_TIMESTAMP
-            WHERE id = :user_id AND access_level = 'pending'
-            RETURNING id, username, name
+            WHERE user_id = :user_id AND is_active = FALSE
+            RETURNING user_id as id, username, name
         """)
         
         result = db.execute(update_query, {