diff --git a/src/main/java/com/example/HappyNewHere/controller/AccountController.java b/src/main/java/com/example/HappyNewHere/controller/AccountController.java
index 68a365c..b4f6602 100644
--- a/src/main/java/com/example/HappyNewHere/controller/AccountController.java
+++ b/src/main/java/com/example/HappyNewHere/controller/AccountController.java
@@ -3,6 +3,7 @@
 
 import com.example.HappyNewHere.dto.AccountDto;
 import com.example.HappyNewHere.dto.UserInfo;
+import com.example.HappyNewHere.dto.request.AccountRequestDto;
 import com.example.HappyNewHere.service.AccountService;
 import com.example.HappyNewHere.service.KakaoService;
 import com.example.HappyNewHere.utils.JwtUtils;
@@ -28,11 +29,8 @@ public class AccountController {
     public ResponseEntity<?> login(
             @RequestParam("code") String code
     ) {
-        System.out.println("dd");
         String accessToken = kakaoService.kakaoToken(code);
-        System.out.println(accessToken);
         UserInfo userInfo = kakaoService.kakaoUser(accessToken);
-        System.out.println(userInfo);
         String response = accountService.saveAccount(userInfo);
 
         return ResponseEntity.ok().body(response);
@@ -41,7 +39,6 @@ public ResponseEntity<?> login(
     @GetMapping("/userInfo")
     public ResponseEntity<?> personalInfo(Authentication authentication
     ) {
-        accountService.findAccount(Long.parseLong(authentication.getName()));
         return ResponseEntity.ok().body(accountService.findAccount(Long.parseLong(authentication.getName())));
     }
 
@@ -68,17 +65,10 @@ public ResponseEntity<Page<AccountDto>> findUsers(
 
     // 유저 생성 (테스트용)
     @PostMapping("/createAccount")
-    public ResponseEntity<AccountDto> createAccount(
-            @RequestBody AccountDto accountDto
-    ) {
-        // ResponseEntity에 AccountDto를 담아서 반환
-        return ResponseEntity.ok(AccountDto.from(accountService.save(accountDto)));
+    public ResponseEntity<?> createAccount(
+            Authentication authentication,
+            @RequestBody AccountRequestDto accountRequestDto
+            ) {
+        return ResponseEntity.ok(accountService.updateAccount(Long.parseLong(authentication.getName()), accountRequestDto));
     }
-
-//    @GetMapping("/test")
-//    public ResponseEntity<?> test() {
-//        return ResponseEntity.ok().body("test");
-//    }
-
-    //
 }
diff --git a/src/main/java/com/example/HappyNewHere/dto/request/AccountRequestDto.java b/src/main/java/com/example/HappyNewHere/dto/request/AccountRequestDto.java
new file mode 100644
index 0000000..8c5ca05
--- /dev/null
+++ b/src/main/java/com/example/HappyNewHere/dto/request/AccountRequestDto.java
@@ -0,0 +1,12 @@
+package com.example.HappyNewHere.dto.request;
+
+public record AccountRequestDto(
+        String userId,
+        String nickname,
+        String profileImg,
+        String stateMsg
+) {
+    public AccountRequestDto(String userId, String nickname, String profileImg) {
+        this(userId, nickname, profileImg, null);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/example/HappyNewHere/service/AccountService.java b/src/main/java/com/example/HappyNewHere/service/AccountService.java
index d2f45bb..ec5447a 100644
--- a/src/main/java/com/example/HappyNewHere/service/AccountService.java
+++ b/src/main/java/com/example/HappyNewHere/service/AccountService.java
@@ -4,6 +4,7 @@
 import com.example.HappyNewHere.domain.Account;
 import com.example.HappyNewHere.dto.AccountDto;
 import com.example.HappyNewHere.dto.UserInfo;
+import com.example.HappyNewHere.dto.request.AccountRequestDto;
 import com.example.HappyNewHere.repository.AccountRepository;
 import com.example.HappyNewHere.utils.JwtUtils;
 import jakarta.transaction.Transactional;
@@ -80,4 +81,11 @@ public void addStateMsg(long l, String stateMsg) {
         account.setStateMsg(stateMsg);
         accountRepository.save(account);
     }
+
+    // 유저 id와 AccountRequestDto를 받아서 해당 유저의 정보를 수정한다.
+    public AccountDto updateAccount(Long accountId, AccountRequestDto accountRequestDto) {
+        // AccountId로 유저가 존재하는 지 확인하고 없을시 예외 반환
+        // 있다면 userId가 동일한지 확인하고 다르다면 예외 반환
+        // 이미 존재하는 유저이며, userId가 동일하다면 해당 유저의 정보를 수정한다.
+    }
 }