diff --git a/src/main/java/likelion/MZConnent/api/member/LoginController.java b/src/main/java/likelion/MZConnent/api/member/LoginController.java
index 3efe560..aa84660 100644
--- a/src/main/java/likelion/MZConnent/api/member/LoginController.java
+++ b/src/main/java/likelion/MZConnent/api/member/LoginController.java
@@ -33,7 +33,7 @@ public ResponseEntity register(@Valid @RequestBody CreateMemberRequest request,
         Long memberId = loginService.createUser(request);
         log.info("회원가입 성공: {}", memberId);
 
-        return ResponseEntity.ok("회원가입 성공");
+        return ResponseEntity.ok(Map.of("message", "회원가입 성공"));
     }
 
     @PostMapping("/api/auth/login")
@@ -50,7 +50,7 @@ public ResponseEntity login(@Valid @RequestBody LoginMemberRequest request, Bind
     }
 
     @PostMapping("/api/auth/logout")
-    public ResponseEntity logout(@AuthenticationPrincipal UserPrinciple userPrinciple, @RequestHeader("Authorization") String authHeader) {
+    public ResponseEntity<Map<String, String>> logout(@AuthenticationPrincipal UserPrinciple userPrinciple, @RequestHeader("Authorization") String authHeader) {
         String email = userPrinciple.getEmail();
 
         log.info("로그아웃 이메일: {}", email);
@@ -60,4 +60,16 @@ public ResponseEntity logout(@AuthenticationPrincipal UserPrinciple userPrincipl
 
         return ResponseEntity.ok(Map.of("message", "로그아웃 성공"));
     }
+
+    @GetMapping("/api/auth/email")
+    public ResponseEntity<Map<String, String>> checkDuplicateEmail(@RequestParam("email") String email) {
+        loginService.checkDuplicateEmail(email);
+        return ResponseEntity.ok(Map.of("message", "이메일 중복 점검 성공"));
+    }
+
+    @GetMapping("/api/auth/username")
+    public ResponseEntity<Map<String, String>> checkDuplicateUsername(@RequestParam("username") String username) {
+        loginService.checkDuplicateUsername(username);
+        return ResponseEntity.ok(Map.of("message", "닉네임 중복 점검 성공"));
+    }
 }
diff --git a/src/main/java/likelion/MZConnent/config/SecurityConfig.java b/src/main/java/likelion/MZConnent/config/SecurityConfig.java
index 0aba1ad..96e98e8 100644
--- a/src/main/java/likelion/MZConnent/config/SecurityConfig.java
+++ b/src/main/java/likelion/MZConnent/config/SecurityConfig.java
@@ -44,7 +44,7 @@ public class SecurityConfig {
 
     // 아무나 접근 가능한 URI
     private final String[] permitAllUrl = {"/error",
-            "/api/auth/login", // 회원
+            "/api/auth/login", "/api/auth/email", "/api/auth/username", // 회원
             "/api/categories/culture", "/api/cultures", "/api/cultures/**", // 문화
             "/api/reviews", // 후기
             "/api/categories/region", "/api/clubs/list",
diff --git a/src/main/java/likelion/MZConnent/service/member/LoginService.java b/src/main/java/likelion/MZConnent/service/member/LoginService.java
index 379622f..8286e20 100644
--- a/src/main/java/likelion/MZConnent/service/member/LoginService.java
+++ b/src/main/java/likelion/MZConnent/service/member/LoginService.java
@@ -45,18 +45,6 @@ public Long createUser(CreateMemberRequest request) {
         // 비밀번호 정책에 맞는지 점검
         checkPasswordPolicy(request.getPassword());
 
-        // 이미 등록된 이메일인지 점검
-        if (memberRepository.existsByEmail(request.getEmail())) {
-            log.info("이미 등록된 이메일={}", request.getEmail());
-            throw new IllegalArgumentException("이미 등록된 이메일입니다.");
-        }
-
-        // 중복되는 닉네임인지 점검
-        if (memberRepository.existsByUsername(request.getUsername())) {
-            log.info("중복되는 닉네임={}", request.getEmail());
-            throw new IllegalArgumentException("중복되는 닉네임입니다.");
-        }
-
         Member member = Member.builder()
                 .email(request.getEmail())
                 .password(passwordEncoder.encode(request.getPassword())) // 비밀번호 암호화
@@ -121,6 +109,22 @@ public void logoout(String accessToken, String email) {
         accessTokenBlackList.setBlackList(accessToken, email);
     }
 
+    // 이메일 중복 점검
+    public void checkDuplicateEmail(String email) {
+        if (memberRepository.existsByEmail(email)) {
+            log.info("이미 등록된 이메일={}", email);
+            throw new IllegalArgumentException("이미 등록된 이메일입니다.");
+        }
+    }
+
+    // 닉네임 중복 점검
+    public void checkDuplicateUsername(String username) {
+        if (memberRepository.existsByUsername(username)) {
+            log.info("중복되는 닉네임={}", username);
+            throw new IllegalArgumentException("중복되는 닉네임입니다.");
+        }
+    }
+
 
     // 비밀번호 정책에 맞는지 점검하는 함수
     private void checkPasswordPolicy(String password) {
@@ -146,4 +150,5 @@ private void checkPassword(String password, Member member) {
         }
     }
 
+
 }