diff --git a/plu-api/src/main/kotlin/com/th/plu/api/controller/member/MemberController.kt b/plu-api/src/main/kotlin/com/th/plu/api/controller/member/MemberController.kt
index c07d93e..45c1ce7 100644
--- a/plu-api/src/main/kotlin/com/th/plu/api/controller/member/MemberController.kt
+++ b/plu-api/src/main/kotlin/com/th/plu/api/controller/member/MemberController.kt
@@ -1,21 +1,22 @@
 package com.th.plu.api.controller.member
 
+import com.th.plu.api.config.interceptor.Auth
+import com.th.plu.api.config.resolver.MemberId
 import com.th.plu.api.controller.member.dto.request.CheckNicknameRequestDto
+import com.th.plu.api.controller.member.dto.request.UpdateNicknameRequest
 import com.th.plu.api.controller.member.dto.response.CheckNicknameResponse
+import com.th.plu.api.controller.member.dto.response.MyPageResponse
 import com.th.plu.api.service.member.MemberService
 import io.swagger.v3.oas.annotations.Operation
 import io.swagger.v3.oas.annotations.tags.Tag
 import com.th.plu.common.dto.response.ApiResponse
-import org.springframework.web.bind.annotation.PostMapping
-import org.springframework.web.bind.annotation.RequestBody
-import org.springframework.web.bind.annotation.RestController
+import org.springframework.web.bind.annotation.*
 
 @Tag(name = "Member")
 @RestController
 class MemberController(
         private val memberService: MemberService,
 ) {
-
     @Operation(summary = "닉네임 중복 체크")
     @PostMapping("/api/v1/member/nickname/dupl")
     fun checkNicknameDupl(@RequestBody request: CheckNicknameRequestDto): ApiResponse<CheckNicknameResponse> {
@@ -23,4 +24,24 @@ class MemberController(
         val response = CheckNicknameResponse(isAvailable)
         return ApiResponse.success(response)
     }
+
+    @Auth
+    @Operation(summary = "[인증] 닉네임 수정")
+    @PutMapping("/api/v1/member/{memberId}/nickname")
+    fun updateNickname(
+            @PathVariable memberId: Long,
+            @RequestBody request: UpdateNicknameRequest
+    ): ApiResponse<Any> {
+        memberService.updateNickname(memberId, request.newNickname)
+        return ApiResponse.success()
+    }
+
+    @Auth
+    @Operation(summary = "[인증] 회원 탈퇴")
+    @DeleteMapping("/api/v1/member")
+    fun deleteMember(@MemberId memberId: Long): ApiResponse<Any> {
+        memberService.deleteMember(memberId)
+        return ApiResponse.success()
+    }
+    
 }
\ No newline at end of file
diff --git a/plu-api/src/main/kotlin/com/th/plu/api/controller/member/dto/request/UpdateNicknameRequest.kt b/plu-api/src/main/kotlin/com/th/plu/api/controller/member/dto/request/UpdateNicknameRequest.kt
new file mode 100644
index 0000000..c6c9d46
--- /dev/null
+++ b/plu-api/src/main/kotlin/com/th/plu/api/controller/member/dto/request/UpdateNicknameRequest.kt
@@ -0,0 +1,5 @@
+package com.th.plu.api.controller.member.dto.request
+
+data class UpdateNicknameRequest(
+        val newNickname: String
+)
\ No newline at end of file
diff --git a/plu-api/src/main/kotlin/com/th/plu/api/service/member/MemberService.kt b/plu-api/src/main/kotlin/com/th/plu/api/service/member/MemberService.kt
index e840f94..6f485c1 100644
--- a/plu-api/src/main/kotlin/com/th/plu/api/service/member/MemberService.kt
+++ b/plu-api/src/main/kotlin/com/th/plu/api/service/member/MemberService.kt
@@ -1,10 +1,13 @@
 package com.th.plu.api.service.member
 
 import com.th.plu.api.controller.member.dto.request.CreateUserRequestDto
+import com.th.plu.api.controller.member.dto.response.MyPageResponse
+import com.th.plu.common.exception.code.ErrorCode
 import com.th.plu.common.exception.model.NotFoundException
 import com.th.plu.domain.domain.member.Member
 import com.th.plu.domain.domain.member.Onboarding
 import com.th.plu.domain.domain.member.Setting
+import com.th.plu.domain.domain.member.explorer.MemberExplorer
 import com.th.plu.domain.domain.member.repository.MemberRepository
 import com.th.plu.domain.domain.member.repository.OnboardingRepository
 import com.th.plu.domain.domain.member.repository.SettingRepository
@@ -13,10 +16,11 @@ import org.springframework.transaction.annotation.Transactional
 
 @Service
 class MemberService(
-    private val memberValidator: MemberValidator,
-    private val memberRepository: MemberRepository,
-    private val onboardingRepository: OnboardingRepository,
-    private val settingRepository: SettingRepository
+        private val memberValidator: MemberValidator,
+        private val memberRepository: MemberRepository,
+        private val onboardingRepository: OnboardingRepository,
+        private val settingRepository: SettingRepository,
+        private val memberExplorer: MemberExplorer
 ) {
 
     @Transactional
@@ -25,25 +29,45 @@ class MemberService(
         memberValidator.validateDuplicatedNickname(request.nickname)
 
         val member = memberRepository.save(
-            Member.newInstance(
-                socialId = request.socialId,
-                socialType = request.socialType,
-                fcmToken = request.fcmToken,
-                setting = settingRepository.save(Setting.newInstance())
-            )
+                Member.newInstance(
+                        socialId = request.socialId,
+                        socialType = request.socialType,
+                        fcmToken = request.fcmToken,
+                        setting = settingRepository.save(Setting.newInstance())
+                )
         )
         val onboarding = onboardingRepository.save(
-            Onboarding.newInstance(
-                member = member,
-                nickname = request.nickname
-            )
+                Onboarding.newInstance(
+                        member = member,
+                        nickname = request.nickname
+                )
         )
         member.initOnboarding(onboarding)
         return member.id!!
     }
 
+    @Transactional(readOnly = true)
     fun isNicknameAvailable(nickname: String): Boolean {
         return !memberRepository.existsByNickname(nickname)
     }
 
+    @Transactional
+    fun updateNickname(memberId: Long, newNickname: String) {
+        val member = memberExplorer.findMemberById(memberId)
+
+        memberValidator.validateDuplicatedNickname(newNickname)
+
+        //onboarding 객체가 null이라면 예외 발생
+        member.onboarding?.let {
+            it.nickname = newNickname
+            onboardingRepository.save(it)
+        } ?: throw NotFoundException(ErrorCode.NOT_FOUND_MEMBER_EXCEPTION, "Onboarding 정보가 없는 유저 $memberId 입니다")
+    }
+
+    @Transactional
+    fun deleteMember(memberId: Long) {
+        val member = memberExplorer.findMemberById(memberId)
+        memberRepository.delete(member)
+    }
+
 }
\ No newline at end of file