diff --git a/build.gradle b/build.gradle
index 5aa3add..5fbca6f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -53,3 +53,5 @@ dependencies {
 tasks.named('test') {
 	useJUnitPlatform()
 }
+
+
diff --git a/src/main/java/goorm/unit/booklog/common/config/SecurityConfig.java b/src/main/java/goorm/unit/booklog/common/config/SecurityConfig.java
index e134386..4bbf30d 100644
--- a/src/main/java/goorm/unit/booklog/common/config/SecurityConfig.java
+++ b/src/main/java/goorm/unit/booklog/common/config/SecurityConfig.java
@@ -59,8 +59,10 @@ public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
 		"/error",
 		"/favicon.ico",
 		"/index.html",
+			"/api/v1/users/duplication",
 			"/api/v1/users/signup",
 			"/api/v1/auth/login"
+
 	};
 
 	CorsConfigurationSource corsConfigurationSource() {
diff --git a/src/main/java/goorm/unit/booklog/domain/user/application/UserService.java b/src/main/java/goorm/unit/booklog/domain/user/application/UserService.java
index 9eb6464..fd85cf9 100644
--- a/src/main/java/goorm/unit/booklog/domain/user/application/UserService.java
+++ b/src/main/java/goorm/unit/booklog/domain/user/application/UserService.java
@@ -20,7 +20,6 @@ public class UserService {
 
     @Transactional
     public UserPersistResponse createUser(UserCreateRequest request) {
-        validateIdDuplication(request.id());
         User user = User.create(
                 request.id(),
                 request.name(),
@@ -30,7 +29,7 @@ public UserPersistResponse createUser(UserCreateRequest request) {
         return UserPersistResponse.of(id);
     }
 
-    public void validateIdDuplication(String id) {
+    public void validateIdDuplication (String id) {
         if(userRepository.existsById(id)) {
             throw new UserIdDuplicatedException();
         }
diff --git a/src/main/java/goorm/unit/booklog/domain/user/presentation/UserController.java b/src/main/java/goorm/unit/booklog/domain/user/presentation/UserController.java
index 69b5c1b..9c8a34a 100644
--- a/src/main/java/goorm/unit/booklog/domain/user/presentation/UserController.java
+++ b/src/main/java/goorm/unit/booklog/domain/user/presentation/UserController.java
@@ -15,6 +15,7 @@
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 import static org.springframework.http.HttpStatus.CREATED;
+import static org.springframework.http.HttpStatus.OK;
 
 @RestController
 @RequiredArgsConstructor
@@ -29,11 +30,6 @@ public class UserController {
                     responseCode="201",
                     description="유저 생성 성공",
                     content=@Content(schema=@Schema(implementation = UserPersistResponse.class))
-            ),
-            @ApiResponse(
-                    responseCode="409",
-                    description="유저 생성 성공",
-                    content=@Content(schema=@Schema(implementation = ExceptionResponse.class))
             )
     })
     @ResponseStatus(CREATED)
@@ -44,5 +40,26 @@ public ResponseEntity<UserPersistResponse> createUser(
         UserPersistResponse response = userService.createUser(request);
         return ResponseEntity.status(CREATED).body(response);
     }
+
+    @Operation(summary="아이디 중복 체크", description="아이디의 중복 여부를 체크합니다.")
+    @ApiResponses({
+            @ApiResponse(
+                    responseCode="200",
+                    description="아이디 사용 가능"
+            ),
+            @ApiResponse(
+                    responseCode="409",
+                    description="아이디 중복됨",
+                    content=@Content(schema=@Schema(implementation = ExceptionResponse.class))
+            )
+    })
+    @GetMapping("/duplication")
+    public ResponseEntity<Void> checkUseridDuplication(
+            @RequestParam String id
+    ) {
+        userService.validateIdDuplication(id);
+        return ResponseEntity.status(OK).build();
+    }
 }
 
+