diff --git a/BE/src/main/java/com/codesquad/issuetracker/hamill/controller/IssueController_Hamill.java b/BE/src/main/java/com/codesquad/issuetracker/hamill/controller/IssueController_Hamill.java
index 738abd4..ea96b30 100644
--- a/BE/src/main/java/com/codesquad/issuetracker/hamill/controller/IssueController_Hamill.java
+++ b/BE/src/main/java/com/codesquad/issuetracker/hamill/controller/IssueController_Hamill.java
@@ -1,17 +1,15 @@
 package com.codesquad.issuetracker.hamill.controller;
 
-import com.codesquad.issuetracker.common.CommonMessage;
 import com.codesquad.issuetracker.hamill.dto.ListOfIssuesDto;
-import com.codesquad.issuetracker.hamill.dto.RequestNewIssueDto;
-import com.codesquad.issuetracker.hamill.dto.info.IssuesDto;
+import com.codesquad.issuetracker.hamill.response.ApiResponse;
 import com.codesquad.issuetracker.hamill.service.IssueService_Hamill;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.*;
-
-import java.util.List;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 
 @RestController
 @RequestMapping("/hamill")
@@ -25,32 +23,19 @@ public IssueController_Hamill(IssueService_Hamill issueService_Hamill) {
         this.issueService_Hamill = issueService_Hamill;
     }
 
-//    @GetMapping("/api/issues")
-//    public ResponseEntity<List<IssuesDto>> showList() {
-//        return new ResponseEntity<>(issueService_Hamill.findAllIssues(), HttpStatus.OK);
-//    }
-
     @GetMapping("/api/issues")
-    public ResponseEntity<ListOfIssuesDto> showList() {
-        return new ResponseEntity<>(issueService_Hamill.getIssuesAndAllElements(), HttpStatus.OK);
+    public ResponseEntity<ApiResponse<ListOfIssuesDto>> showList() {
+        return new ResponseEntity<>(ApiResponse.OK(issueService_Hamill.getIssuesAndAllElements()), HttpStatus.OK);
     }
 
-    @GetMapping("/api/issues/{issueId}")
-    public ResponseEntity<IssuesDto> findIssueByIssueId(@PathVariable Long issueId) {
-        return new ResponseEntity<>(issueService_Hamill.findIssueByIssueId(issueId), HttpStatus.OK);
-    }
-
-    @PostMapping("/api/issues")
-    public ResponseEntity<CommonMessage> create(@RequestBody RequestNewIssueDto requestNewIssueDto) {
-        issueService_Hamill.save(requestNewIssueDto);
-        return new ResponseEntity<>(getMessage("200", "새로운 이슈 생성 성공"), HttpStatus.OK);
-    }
-
-    private CommonMessage getMessage(String statusCode, String message) {
-
-        return CommonMessage.builder()
-                            .statusCode(statusCode)
-                            .message(message)
-                            .build();
-    }
+//    @GetMapping("/api/issues/{issueId}")
+//    public ResponseEntity<IssuesDto> findIssueByIssueId(@PathVariable Long issueId) {
+//        return new ResponseEntity<>(issueService_Hamill.findIssueByIssueId(issueId), HttpStatus.OK);
+//    }
+//
+//    @PostMapping("/api/issues")
+//    public ResponseEntity<CommonMessage> create(@RequestBody RequestNewIssueDto requestNewIssueDto) {
+//        issueService_Hamill.save(requestNewIssueDto);
+//        return new ResponseEntity<>(getMessage("200", "새로운 이슈 생성 성공"), HttpStatus.OK);
+//    }
  }
diff --git a/BE/src/main/java/com/codesquad/issuetracker/hamill/service/IssueService_Hamill.java b/BE/src/main/java/com/codesquad/issuetracker/hamill/service/IssueService_Hamill.java
index f1513cb..499aae4 100644
--- a/BE/src/main/java/com/codesquad/issuetracker/hamill/service/IssueService_Hamill.java
+++ b/BE/src/main/java/com/codesquad/issuetracker/hamill/service/IssueService_Hamill.java
@@ -5,20 +5,16 @@
 import com.codesquad.issuetracker.hamill.domain.Milestone;
 import com.codesquad.issuetracker.hamill.domain.User;
 import com.codesquad.issuetracker.hamill.dto.ListOfIssuesDto;
-import com.codesquad.issuetracker.hamill.dto.RequestNewIssueDto;
+import com.codesquad.issuetracker.hamill.vo.UserVO.UserSummary;
 import com.codesquad.issuetracker.hamill.vo.issueVO.IssueDetails;
 import com.codesquad.issuetracker.hamill.vo.labelVO.LabelInformation;
 import com.codesquad.issuetracker.hamill.vo.labelVO.LabelSummary;
 import com.codesquad.issuetracker.hamill.vo.milestoneVO.MilestoneInformation;
-import com.codesquad.issuetracker.hamill.vo.UserVO.UserSummary;
-
 import com.codesquad.issuetracker.hamill.vo.milestoneVO.MilestoneSummary;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Service;
-import com.codesquad.issuetracker.hamill.dto.info.*;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -42,10 +38,7 @@ public IssueService_Hamill(IssueDao_Hamill issueDao_Hamill, LabelService_Hamill
 
     public ListOfIssuesDto getIssuesAndAllElements() {
         List<Issue> issues = issueDao_Hamill.findAllIssues();
-        List<IssueDetails> issueDetails = issues.stream()
-                .map(this::mapToIssueDetails)
-                .collect(Collectors.toList());
-
+        List<IssueDetails> issueDetails = issues.stream().map(this::mapToIssueDetails).collect(Collectors.toList());
         LabelInformation labelInfo = labelService_hamill.findLabelInformation();
         MilestoneInformation milestoneInfo = milestoneService_hamill.findMilestoneInformation();
         List<UserSummary> userSummary = userService_hamill.findUserInformation();
@@ -59,52 +52,46 @@ private IssueDetails mapToIssueDetails(Issue issue) {
         List<UserSummary> allocatedAssignees = userService_hamill.findUserSummaryByIssueId(issue.getId());
         User user = userService_hamill.findUserByUserId(issue.getUserId());
 
-        return IssueDetails.of(
-                issue.getId(),
-                issue.getTitle(),
-                MilestoneSummary.of(milestone.getId(), milestone.getTitle()),
-                attachedLabels,
-                UserSummary.of(user.getId(), user.getName(), user.getAvatarUrl()),
-                allocatedAssignees,
-                issue.getCreatedDateTime(),
-                issue.isOpened());
-    }
-
-
-    public IssuesDto findIssueByIssueId(Long issueId) {
-
-        IssuesDto issuesDto = issueDao_Hamill.findIssueByIssueId(issueId);
-        issuesDto.setAttachedLabels(issueDao_Hamill.findLabelsByIssuesId(issueId));
-        issuesDto.setAllocatedAssignees(issueDao_Hamill.findAssigneeByIssueId(issueId));
-        return issuesDto;
+        return IssueDetails.of(issue.getId(), issue.getTitle(), MilestoneSummary.of(milestone.getId(), milestone.getTitle()),
+                attachedLabels, UserSummary.of(user.getId(), user.getName(), user.getAvatarUrl()), allocatedAssignees,
+                issue.getCreatedDateTime(), issue.isOpened());
     }
 
-    public void save(RequestNewIssueDto requestNewIssueDto) {
-        Long newIssueId = issueDao_Hamill.getCountOfIssues() + 1L;
-        issueDao_Hamill.saveNewIssue(
-                newIssueId,
-                requestNewIssueDto.getTitle(),
-                requestNewIssueDto.getUserId(),
-                requestNewIssueDto.getMilestone().getMilestoneId());
-
-        saveNewIssueHasLabel(requestNewIssueDto);
-        saveAssignees(requestNewIssueDto);
-
-        IssuesDto issuesDto = issueDao_Hamill.findIssueByIssueId(newIssueId);
-        issuesDto.setAttachedLabels(requestNewIssueDto.getAttachedLabels());
-        issuesDto.setAllocatedAssignees(requestNewIssueDto.getAllocatedAssignees());
-    }
 
-    private void saveNewIssueHasLabel(RequestNewIssueDto requestNewIssueDto) {
-        for (int i = ZERO; i < requestNewIssueDto.getAttachedLabels().size(); i++) {
-            issueDao_Hamill.saveNewIssueHasLabel(requestNewIssueDto.getAttachedLabels().get(i).getLabelId(), (long)issueDao_Hamill.getCountOfIssues());
-        }
-    }
-
-    private void saveAssignees(RequestNewIssueDto requestNewIssueDto) {
-        for (int i = ZERO; i < requestNewIssueDto.getAllocatedAssignees().size(); i++) {
-            issueDao_Hamill.saveAssignees((long)issueDao_Hamill.getCountOfIssues(), requestNewIssueDto.getAllocatedAssignees().get(i).getUserId());
-        }
-    }
+//    public IssuesDto findIssueByIssueId(Long issueId) {
+//
+//        IssuesDto issuesDto = issueDao_Hamill.findIssueByIssueId(issueId);
+//        issuesDto.setAttachedLabels(issueDao_Hamill.findLabelsByIssuesId(issueId));
+//        issuesDto.setAllocatedAssignees(issueDao_Hamill.findAssigneeByIssueId(issueId));
+//        return issuesDto;
+//    }
+//
+//    public void save(RequestNewIssueDto requestNewIssueDto) {
+//        Long newIssueId = issueDao_Hamill.getCountOfIssues() + 1L;
+//        issueDao_Hamill.saveNewIssue(
+//                newIssueId,
+//                requestNewIssueDto.getTitle(),
+//                requestNewIssueDto.getUserId(),
+//                requestNewIssueDto.getMilestone().getMilestoneId());
+//
+//        saveNewIssueHasLabel(requestNewIssueDto);
+//        saveAssignees(requestNewIssueDto);
+//
+//        IssuesDto issuesDto = issueDao_Hamill.findIssueByIssueId(newIssueId);
+//        issuesDto.setAttachedLabels(requestNewIssueDto.getAttachedLabels());
+//        issuesDto.setAllocatedAssignees(requestNewIssueDto.getAllocatedAssignees());
+//    }
+
+//    private void saveNewIssueHasLabel(RequestNewIssueDto requestNewIssueDto) {
+//        for (int i = ZERO; i < requestNewIssueDto.getAttachedLabels().size(); i++) {
+//            issueDao_Hamill.saveNewIssueHasLabel(requestNewIssueDto.getAttachedLabels().get(i).getLabelId(), (long)issueDao_Hamill.getCountOfIssues());
+//        }
+//    }
+//
+//    private void saveAssignees(RequestNewIssueDto requestNewIssueDto) {
+//        for (int i = ZERO; i < requestNewIssueDto.getAllocatedAssignees().size(); i++) {
+//            issueDao_Hamill.saveAssignees((long)issueDao_Hamill.getCountOfIssues(), requestNewIssueDto.getAllocatedAssignees().get(i).getUserId());
+//        }
+//    }
 
 }