diff --git a/src/main/java/com/example/mutsideout_mju/controller/UserController.java b/src/main/java/com/example/mutsideout_mju/controller/UserController.java
index 7907fbb..6e9596c 100644
--- a/src/main/java/com/example/mutsideout_mju/controller/UserController.java
+++ b/src/main/java/com/example/mutsideout_mju/controller/UserController.java
@@ -1,16 +1,17 @@
 package com.example.mutsideout_mju.controller;
 
 import com.example.mutsideout_mju.authentication.AuthenticatedUser;
+import com.example.mutsideout_mju.dto.request.user.DeleteUserDto;
+import com.example.mutsideout_mju.dto.request.user.UpdateUserDto;
 import com.example.mutsideout_mju.dto.response.ResponseDto;
 import com.example.mutsideout_mju.dto.response.user.UserGradeResponseDto;
 import com.example.mutsideout_mju.entity.User;
 import com.example.mutsideout_mju.service.UserService;
+import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 @RestController
 @RequiredArgsConstructor
@@ -23,4 +24,18 @@ public ResponseEntity<ResponseDto<UserGradeResponseDto>> getUserGrade(@Authentic
         UserGradeResponseDto userGradeResponseDto = userService.getUserGrade(user);
         return new ResponseEntity<>(ResponseDto.res(HttpStatus.OK, "유저 등급 조회 완료", userGradeResponseDto), HttpStatus.OK);
     }
+
+    @PatchMapping
+    public ResponseEntity<ResponseDto<UserGradeResponseDto>> updateUser(@AuthenticatedUser User user,
+                                                                        @RequestBody @Valid UpdateUserDto updateUserDto) {
+        userService.updateUser(user, updateUserDto);
+        return new ResponseEntity<>(ResponseDto.res(HttpStatus.OK, "유저 정보 수정 완료"), HttpStatus.OK);
+    }
+
+    @DeleteMapping
+    public ResponseEntity<ResponseDto<UserGradeResponseDto>> deleteUser(@AuthenticatedUser User user,
+                                                                        @RequestBody @Valid DeleteUserDto deleteUserDto) {
+        userService.deleteUser(user, deleteUserDto);
+        return new ResponseEntity<>(ResponseDto.res(HttpStatus.OK, "회원 탈퇴 성공"), HttpStatus.OK);
+    }
 }
diff --git a/src/main/java/com/example/mutsideout_mju/dto/request/user/DeleteUserDto.java b/src/main/java/com/example/mutsideout_mju/dto/request/user/DeleteUserDto.java
new file mode 100644
index 0000000..6c5aa40
--- /dev/null
+++ b/src/main/java/com/example/mutsideout_mju/dto/request/user/DeleteUserDto.java
@@ -0,0 +1,14 @@
+package com.example.mutsideout_mju.dto.request.user;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Pattern;
+import jakarta.validation.constraints.Size;
+import lombok.Getter;
+
+@Getter
+public class DeleteUserDto {
+    @NotBlank(message = "비밀번호를 입력해주세요.")
+    @Pattern(regexp = "^(?=.*[A-Za-z])(?=.*\\d)(?=.*[!@#$%^&*()])[A-Za-z\\d!@#$%^&*()]{8,20}$", message = "비밀번호는 영문과 숫자,특수기호를 조합하여 8~20글자 미만으로 입력해주세요.")
+    @Size(min = 8, max = 20, message = "비밀번호는 최소 8자에서 최대 20자까지 입력 가능합니다.")
+    private String password;
+}
diff --git a/src/main/java/com/example/mutsideout_mju/dto/request/user/UpdateUserDto.java b/src/main/java/com/example/mutsideout_mju/dto/request/user/UpdateUserDto.java
new file mode 100644
index 0000000..acd00c2
--- /dev/null
+++ b/src/main/java/com/example/mutsideout_mju/dto/request/user/UpdateUserDto.java
@@ -0,0 +1,21 @@
+package com.example.mutsideout_mju.dto.request.user;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Pattern;
+import jakarta.validation.constraints.Size;
+import lombok.Getter;
+
+@Getter
+public class UpdateUserDto {
+    @Size(min = 1, max = 10, message = "이름은 최소 1자에서 최대 10자까지 입력 가능합니다.")
+    private String newName;
+
+    @NotBlank(message = "기존 비밀번호를 입력해주세요.")
+    @Pattern(regexp = "^(?=.*[A-Za-z])(?=.*\\d)(?=.*[!@#$%^&*()])[A-Za-z\\d!@#$%^&*()]{8,20}$", message = "비밀번호는 영문과 숫자,특수기호를 조합하여 8~20글자 미만으로 입력해주세요.")
+    @Size(min = 8, max = 20, message = "비밀번호는 최소 8자에서 최대 20자까지 입력 가능합니다.")
+    private String originPassword;
+
+    @Pattern(regexp = "^(?=.*[A-Za-z])(?=.*\\d)(?=.*[!@#$%^&*()])[A-Za-z\\d!@#$%^&*()]{8,20}$", message = "비밀번호는 영문과 숫자,특수기호를 조합하여 8~20글자 미만으로 입력해주세요.")
+    @Size(min = 8, max = 20, message = "비밀번호는 최소 8자에서 최대 20자까지 입력 가능합니다.")
+    private String newPassword;
+}
diff --git a/src/main/java/com/example/mutsideout_mju/entity/User.java b/src/main/java/com/example/mutsideout_mju/entity/User.java
index b8da770..880a008 100644
--- a/src/main/java/com/example/mutsideout_mju/entity/User.java
+++ b/src/main/java/com/example/mutsideout_mju/entity/User.java
@@ -40,6 +40,14 @@ public void setUserGrade(Grade userGrade) {
         this.userGrade = userGrade;
     }
 
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
     public Grade determineGrade(long count) {
         if (count >= 4) {
             return Grade.TOMATO;
diff --git a/src/main/java/com/example/mutsideout_mju/service/UserService.java b/src/main/java/com/example/mutsideout_mju/service/UserService.java
index 05ad3e3..db86a02 100644
--- a/src/main/java/com/example/mutsideout_mju/service/UserService.java
+++ b/src/main/java/com/example/mutsideout_mju/service/UserService.java
@@ -1,10 +1,16 @@
 package com.example.mutsideout_mju.service;
 
+import com.example.mutsideout_mju.authentication.PasswordHashEncryption;
+import com.example.mutsideout_mju.dto.request.user.DeleteUserDto;
+import com.example.mutsideout_mju.dto.request.user.UpdateUserDto;
 import com.example.mutsideout_mju.dto.response.user.UserGradeResponseDto;
 import com.example.mutsideout_mju.entity.Grade;
 import com.example.mutsideout_mju.entity.SurveyOption;
 import com.example.mutsideout_mju.entity.User;
 import com.example.mutsideout_mju.entity.UserSurvey;
+import com.example.mutsideout_mju.exception.ConflictException;
+import com.example.mutsideout_mju.exception.ForbiddenException;
+import com.example.mutsideout_mju.exception.errorCode.ErrorCode;
 import com.example.mutsideout_mju.repository.UserRepository;
 import com.example.mutsideout_mju.repository.UserSurveyRepository;
 import lombok.RequiredArgsConstructor;
@@ -18,6 +24,7 @@
 public class UserService {
     private final UserRepository userRepository;
     private final UserSurveyRepository userSurveyRepository;
+    private final PasswordHashEncryption passwordHashEncryption;
 
     @Transactional
     public UserGradeResponseDto calculateUserGrade(User user) {
@@ -45,4 +52,34 @@ public static boolean isValidSurveyOption(UserSurvey userSurvey) {
         return (questionNumber >= 1 && questionNumber <= 3 && (option == SurveyOption.NORMAL || option == SurveyOption.YES))
                 || (questionNumber >= 4 && questionNumber <= 6 && option == SurveyOption.YES);
     }
+
+    //회원 탈퇴
+    public void deleteUser(User user, DeleteUserDto deleteUserDto) {
+        validatePassword(deleteUserDto.getPassword(), user.getPassword());
+        userRepository.delete(user);
+    }
+
+    //회원 정보 수정
+    @Transactional
+    public void updateUser(User user, UpdateUserDto updateUserDto) {
+        validatePassword(updateUserDto.getOriginPassword(), user.getPassword());
+        if (updateUserDto.getNewName() != null && !updateUserDto.getNewName().isEmpty()) {
+            //중복된 이름이 있을 경우
+            if (userRepository.findByName(updateUserDto.getNewName()).isPresent()) {
+                throw new ConflictException(ErrorCode.DUPLICATED_NAME);
+            }
+            user.setName(updateUserDto.getNewName());
+        }
+        if (updateUserDto.getNewPassword() != null && !updateUserDto.getNewPassword().isEmpty()) {
+            user.setPassword(passwordHashEncryption.encrypt(updateUserDto.getNewPassword()));
+        }
+        userRepository.save(user);
+    }
+
+    //비밀번호 일치 여부 확인
+    public void validatePassword(String plainPassword, String hashedPassword) {
+        if (!passwordHashEncryption.matches(plainPassword, hashedPassword)) {
+            throw new ForbiddenException(ErrorCode.NO_ACCESS, "비밀번호 정보가 일치하지 않습니다.");
+        }
+    }
 }