diff --git a/src/main/java/project/flipnote/common/entity/SoftDeletableEntity.java b/src/main/java/project/flipnote/common/entity/SoftDeletableEntity.java
index 9c295b69..9963b4df 100644
--- a/src/main/java/project/flipnote/common/entity/SoftDeletableEntity.java
+++ b/src/main/java/project/flipnote/common/entity/SoftDeletableEntity.java
@@ -9,13 +9,13 @@
 @MappedSuperclass
 public abstract class SoftDeletableEntity extends BaseEntity {
 
-	private LocalDateTime deletedDate;
+	private LocalDateTime deletedAt;
 
 	public void softDelete() {
-		this.deletedDate = LocalDateTime.now();
+		this.deletedAt = LocalDateTime.now();
 	}
 
 	public boolean isDeleted() {
-		return deletedDate != null;
+		return deletedAt != null;
 	}
 }
diff --git a/src/main/java/project/flipnote/user/controller/UserController.java b/src/main/java/project/flipnote/user/controller/UserController.java
index a98e67ee..4a62aef8 100644
--- a/src/main/java/project/flipnote/user/controller/UserController.java
+++ b/src/main/java/project/flipnote/user/controller/UserController.java
@@ -2,6 +2,8 @@
 
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -9,6 +11,7 @@
 
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
+import project.flipnote.common.security.dto.UserAuth;
 import project.flipnote.user.model.UserRegisterRequest;
 import project.flipnote.user.model.UserRegisterResponse;
 import project.flipnote.user.service.UserService;
@@ -25,4 +28,10 @@ public ResponseEntity<UserRegisterResponse> register(@Valid @RequestBody UserReg
 		UserRegisterResponse res = userService.register(req);
 		return ResponseEntity.status(HttpStatus.CREATED).body(res);
 	}
+
+	@DeleteMapping
+	public ResponseEntity<Void> unregister(@AuthenticationPrincipal UserAuth userAuth) {
+		userService.unregister(userAuth.userId());
+		return ResponseEntity.noContent().build();
+	}
 }
diff --git a/src/main/java/project/flipnote/user/entity/User.java b/src/main/java/project/flipnote/user/entity/User.java
index 24e71942..0256974c 100644
--- a/src/main/java/project/flipnote/user/entity/User.java
+++ b/src/main/java/project/flipnote/user/entity/User.java
@@ -76,4 +76,9 @@ public User(
 		this.role = UserRole.USER;
 	}
 
+	@Override
+	public void softDelete() {
+		super.softDelete();
+		this.status = UserStatus.INACTIVE;
+	}
 }
diff --git a/src/main/java/project/flipnote/user/repository/UserRepository.java b/src/main/java/project/flipnote/user/repository/UserRepository.java
index 05761956..007c48cb 100644
--- a/src/main/java/project/flipnote/user/repository/UserRepository.java
+++ b/src/main/java/project/flipnote/user/repository/UserRepository.java
@@ -14,4 +14,6 @@ public interface UserRepository extends JpaRepository<User, Long> {
 	boolean existsByPhone(String phone);
 
 	Optional<User> findByEmailAndStatus(String email, UserStatus status);
+
+	Optional<User> findByIdAndStatus(Long userId, UserStatus status);
 }
diff --git a/src/main/java/project/flipnote/user/service/UserService.java b/src/main/java/project/flipnote/user/service/UserService.java
index 05c00e0c..85484f8a 100644
--- a/src/main/java/project/flipnote/user/service/UserService.java
+++ b/src/main/java/project/flipnote/user/service/UserService.java
@@ -10,6 +10,7 @@
 import project.flipnote.auth.service.AuthService;
 import project.flipnote.common.exception.BizException;
 import project.flipnote.user.entity.User;
+import project.flipnote.user.entity.UserStatus;
 import project.flipnote.user.exception.UserErrorCode;
 import project.flipnote.user.model.UserRegisterRequest;
 import project.flipnote.user.model.UserRegisterResponse;
@@ -50,6 +51,18 @@ public UserRegisterResponse register(UserRegisterRequest req) {
 		return UserRegisterResponse.from(savedUser.getId());
 	}
 
+	@Transactional
+	public void unregister(Long userId) {
+		User user = findActiveUserById(userId);
+
+		user.softDelete();
+	}
+
+	private User findActiveUserById(Long userId) {
+		return userRepository.findByIdAndStatus(userId, UserStatus.ACTIVE)
+			.orElseThrow(() -> new BizException(UserErrorCode.USER_NOT_FOUND));
+	}
+
 	private void validateEmailDuplicate(String email) {
 		if (userRepository.existsByEmail(email)) {
 			throw new BizException(UserErrorCode.DUPLICATE_EMAIL);
diff --git a/src/test/java/project/flipnote/user/service/UserServiceTest.java b/src/test/java/project/flipnote/user/service/UserServiceTest.java
index 67b8617a..6b5cb480 100644
--- a/src/test/java/project/flipnote/user/service/UserServiceTest.java
+++ b/src/test/java/project/flipnote/user/service/UserServiceTest.java
@@ -4,6 +4,8 @@
 import static org.junit.jupiter.api.Assertions.*;
 import static org.mockito.BDDMockito.*;
 
+import java.util.Optional;
+
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Nested;
@@ -18,7 +20,9 @@
 import project.flipnote.auth.exception.AuthErrorCode;
 import project.flipnote.auth.service.AuthService;
 import project.flipnote.common.exception.BizException;
+import project.flipnote.fixture.UserFixture;
 import project.flipnote.user.entity.User;
+import project.flipnote.user.entity.UserStatus;
 import project.flipnote.user.exception.UserErrorCode;
 import project.flipnote.user.model.UserRegisterRequest;
 import project.flipnote.user.model.UserRegisterResponse;
@@ -40,23 +44,6 @@ class UserServiceTest {
 	@Mock
 	private PasswordEncoder passwordEncoder;
 
-	private User user;
-
-	@BeforeEach
-	void init() {
-		user = User.builder()
-			.email("test@test.com")
-			.password("testPass")
-			.name("테스트")
-			.nickname("테스트")
-			.smsAgree(false)
-			.phone("010-1234-5678")
-			.profileImageUrl(null)
-			.build();
-
-		ReflectionTestUtils.setField(user, "id", 1L);
-	}
-
 	@DisplayName("회원가입 테스트")
 	@Nested
 	class Register {
@@ -64,6 +51,7 @@ class Register {
 		@DisplayName("성공")
 		@Test
 		void success() {
+			User user = UserFixture.createActiveUser();
 			UserRegisterRequest req = new UserRegisterRequest(
 				"test@test.com", "testPass", "테스트", "테스트", false, "010-1234-5678", ""
 			);
@@ -84,6 +72,7 @@ void success() {
 		@DisplayName("휴대전화 번호가 null일 때 성공")
 		@Test
 		void success_ifPhoneIsNull() {
+			User user = UserFixture.createActiveUser();
 			UserRegisterRequest req = new UserRegisterRequest(
 				"test@test.com", "testPass", "테스트", "테스트", false, null, null
 			);
@@ -151,4 +140,32 @@ void fail_unverifiedEmail() {
 		}
 	}
 
+	@DisplayName("회원 탈퇴 테스트")
+	@Nested
+	class Unregister {
+
+		@DisplayName("성공")
+		@Test
+		void success() {
+			User user = spy(UserFixture.createActiveUser());
+
+			given(userRepository.findByIdAndStatus(anyLong(), any(UserStatus.class))).willReturn(Optional.of(user));
+
+			userService.unregister(user.getId());
+
+			assertThat(user.getStatus()).isEqualTo(UserStatus.INACTIVE);
+			assertThat(user.getDeletedAt()).isNotNull();
+
+			verify(user, times(1)).softDelete();
+		}
+
+		@DisplayName("회원 id가 존재하지 않는 경우 예외 발생")
+		@Test
+		void fail_userNotFound() {
+			given(userRepository.findByIdAndStatus(anyLong(), any(UserStatus.class))).willReturn(Optional.empty());
+
+			BizException exception = assertThrows(BizException.class, () -> userService.unregister(1L));
+			assertThat(exception.getErrorCode()).isEqualTo(UserErrorCode.USER_NOT_FOUND);
+		}
+	}
 }