diff --git a/frontend/issues-inbox.html b/frontend/issues-inbox.html
index 31fdd4a..1c59a4a 100644
--- a/frontend/issues-inbox.html
+++ b/frontend/issues-inbox.html
@@ -224,6 +224,153 @@
         </div>
     </main>
 
+    <!-- 폐기 모달 -->
+    <div id="disposeModal" class="fixed inset-0 bg-black bg-opacity-50 hidden z-50">
+        <div class="flex items-center justify-center min-h-screen p-4">
+            <div class="bg-white rounded-xl max-w-md w-full p-6">
+                <div class="flex items-center justify-between mb-4">
+                    <h3 class="text-lg font-semibold text-gray-900">부적합 폐기</h3>
+                    <button onclick="closeDisposeModal()" class="text-gray-400 hover:text-gray-600">
+                        <i class="fas fa-times"></i>
+                    </button>
+                </div>
+                
+                <div class="space-y-4">
+                    <div>
+                        <label class="block text-sm font-medium text-gray-700 mb-2">폐기 사유</label>
+                        <select id="disposalReason" class="w-full px-3 py-2 border border-gray-300 rounded-lg" onchange="toggleCustomReason()">
+                            <option value="duplicate">중복 (기본)</option>
+                            <option value="invalid_report">잘못된 신고</option>
+                            <option value="not_applicable">해당 없음</option>
+                            <option value="spam">스팸/오류</option>
+                            <option value="custom">직접 입력</option>
+                        </select>
+                    </div>
+                    
+                    <div id="customReasonDiv" class="hidden">
+                        <label class="block text-sm font-medium text-gray-700 mb-2">사용자 정의 사유</label>
+                        <textarea id="customReason" rows="3" class="w-full px-3 py-2 border border-gray-300 rounded-lg" 
+                                  placeholder="폐기 사유를 입력하세요..."></textarea>
+                    </div>
+                    
+                    <div class="flex justify-end space-x-3">
+                        <button onclick="closeDisposeModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">
+                            취소
+                        </button>
+                        <button onclick="confirmDispose()" class="px-4 py-2 bg-red-500 text-white rounded-lg hover:bg-red-600">
+                            폐기
+                        </button>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <!-- 검토/수정 모달 -->
+    <div id="reviewModal" class="fixed inset-0 bg-black bg-opacity-50 hidden z-50">
+        <div class="flex items-center justify-center min-h-screen p-4">
+            <div class="bg-white rounded-xl max-w-2xl w-full p-6 max-h-[90vh] overflow-y-auto">
+                <div class="flex items-center justify-between mb-4">
+                    <h3 class="text-lg font-semibold text-gray-900">부적합 검토 및 수정</h3>
+                    <button onclick="closeReviewModal()" class="text-gray-400 hover:text-gray-600">
+                        <i class="fas fa-times"></i>
+                    </button>
+                </div>
+                
+                <div class="space-y-4">
+                    <!-- 원본 정보 표시 -->
+                    <div class="bg-gray-50 p-4 rounded-lg">
+                        <h4 class="font-medium text-gray-700 mb-2">원본 정보</h4>
+                        <div id="originalInfo" class="text-sm text-gray-600">
+                            <!-- 원본 정보가 여기에 표시됩니다 -->
+                        </div>
+                    </div>
+                    
+                    <!-- 수정 폼 -->
+                    <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
+                        <div>
+                            <label class="block text-sm font-medium text-gray-700 mb-2">프로젝트</label>
+                            <select id="reviewProjectId" class="w-full px-3 py-2 border border-gray-300 rounded-lg">
+                                <option value="">프로젝트 선택</option>
+                            </select>
+                        </div>
+                        
+                        <div>
+                            <label class="block text-sm font-medium text-gray-700 mb-2">카테고리</label>
+                            <select id="reviewCategory" class="w-full px-3 py-2 border border-gray-300 rounded-lg">
+                                <option value="material_missing">자재 누락</option>
+                                <option value="design_error">설계 오류</option>
+                                <option value="incoming_defect">반입 불량</option>
+                                <option value="inspection_miss">검사 누락</option>
+                                <option value="etc">기타</option>
+                            </select>
+                        </div>
+                    </div>
+                    
+                    <div>
+                        <label class="block text-sm font-medium text-gray-700 mb-2">설명</label>
+                        <textarea id="reviewDescription" rows="4" class="w-full px-3 py-2 border border-gray-300 rounded-lg" 
+                                  placeholder="부적합 설명을 입력하세요..."></textarea>
+                    </div>
+                    
+                    <div class="flex justify-end space-x-3">
+                        <button onclick="closeReviewModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">
+                            취소
+                        </button>
+                        <button onclick="saveReview()" class="px-4 py-2 bg-blue-500 text-white rounded-lg hover:bg-blue-600">
+                            검토 완료
+                        </button>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <!-- 상태 결정 모달 -->
+    <div id="statusModal" class="fixed inset-0 bg-black bg-opacity-50 hidden z-50">
+        <div class="flex items-center justify-center min-h-screen p-4">
+            <div class="bg-white rounded-xl max-w-md w-full p-6">
+                <div class="flex items-center justify-between mb-4">
+                    <h3 class="text-lg font-semibold text-gray-900">최종 상태 결정</h3>
+                    <button onclick="closeStatusModal()" class="text-gray-400 hover:text-gray-600">
+                        <i class="fas fa-times"></i>
+                    </button>
+                </div>
+                
+                <div class="space-y-4">
+                    <div>
+                        <label class="block text-sm font-medium text-gray-700 mb-2">상태 선택</label>
+                        <div class="space-y-2">
+                            <label class="flex items-center">
+                                <input type="radio" name="finalStatus" value="in_progress" class="mr-2">
+                                <span class="text-sm">🔄 진행 중 (관리함으로 이동)</span>
+                            </label>
+                            <label class="flex items-center">
+                                <input type="radio" name="finalStatus" value="completed" class="mr-2">
+                                <span class="text-sm">✅ 완료됨 (관리함으로 이동)</span>
+                            </label>
+                        </div>
+                    </div>
+                    
+                    <div>
+                        <label class="block text-sm font-medium text-gray-700 mb-2">처리 메모 (선택사항)</label>
+                        <textarea id="statusNotes" rows="3" class="w-full px-3 py-2 border border-gray-300 rounded-lg" 
+                                  placeholder="처리 내용이나 특이사항을 입력하세요..."></textarea>
+                    </div>
+                    
+                    <div class="flex justify-end space-x-3">
+                        <button onclick="closeStatusModal()" class="px-4 py-2 text-gray-600 hover:text-gray-800">
+                            취소
+                        </button>
+                        <button onclick="confirmStatus()" class="px-4 py-2 bg-green-500 text-white rounded-lg hover:bg-green-600">
+                            상태 변경
+                        </button>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
     <!-- Scripts -->
     <script src="/static/js/date-utils.js?v=20250917"></script>
     <script src="/static/js/core/permissions.js?v=20251025"></script>
@@ -307,11 +454,19 @@
             });
         }
 
-        // 부적합 목록 로드
+        // 수신함 부적합 목록 로드 (실제 API 연동)
         async function loadIssues() {
             showLoading(true);
             try {
-                const response = await fetch('/api/issues/', {
+                const projectId = document.getElementById('projectFilter').value;
+                let url = '/api/inbox/';
+                
+                // 프로젝트 필터 적용
+                if (projectId) {
+                    url += `?project_id=${projectId}`;
+                }
+                
+                const response = await fetch(url, {
                     headers: {
                         'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
                         'Content-Type': 'application/json'
@@ -322,19 +477,19 @@
                     issues = await response.json();
                     
                     // 읽음 상태 로드 (localStorage에서)
-                    const savedReadStatus = localStorage.getItem('issues_read_status');
+                    const savedReadStatus = localStorage.getItem('inbox_read_status');
                     if (savedReadStatus) {
                         readStatus = new Set(JSON.parse(savedReadStatus));
                     }
                     
                     filterIssues();
-                    updateStatistics();
+                    await loadStatistics();
                 } else {
-                    throw new Error('부적합 목록을 불러올 수 없습니다.');
+                    throw new Error('수신함 목록을 불러올 수 없습니다.');
                 }
             } catch (error) {
-                console.error('부적합 로드 실패:', error);
-                showError('부적합 목록을 불러오는데 실패했습니다.');
+                console.error('수신함 로드 실패:', error);
+                showError('수신함 목록을 불러오는데 실패했습니다.');
             } finally {
                 showLoading(false);
             }
@@ -414,29 +569,45 @@
                 const timeAgo = getTimeAgo(new Date(issue.created_at));
                 
                 return `
-                    <div class="issue-card p-6 hover:bg-gray-50 cursor-pointer ${isUnread ? 'unread' : ''}" 
-                         onclick="viewIssueDetail(${issue.id})">
+                    <div class="issue-card p-6 hover:bg-gray-50 ${isUnread ? 'unread' : ''}" 
+                         data-issue-id="${issue.id}">
                         <div class="flex items-start justify-between">
                             <div class="flex-1">
                                 <div class="flex items-center space-x-3 mb-2">
                                     ${isUnread ? '<div class="w-2 h-2 bg-blue-500 rounded-full"></div>' : '<div class="w-2 h-2"></div>'}
-                                    <span class="badge badge-${getStatusBadgeClass(issue.status)}">${getStatusText(issue.status)}</span>
+                                    <span class="badge badge-new">검토 대기</span>
                                     ${project ? `<span class="text-sm text-gray-500">${project.name}</span>` : ''}
                                     <span class="text-sm text-gray-400">${timeAgo}</span>
                                 </div>
                                 
-                                <h3 class="text-lg font-medium text-gray-900 mb-2">${issue.description}</h3>
+                                <h3 class="text-lg font-medium text-gray-900 mb-2 cursor-pointer" onclick="viewIssueDetail(${issue.id})">${issue.description}</h3>
                                 
-                                <div class="flex items-center text-sm text-gray-500 space-x-4">
+                                <div class="flex items-center text-sm text-gray-500 space-x-4 mb-3">
                                     <span><i class="fas fa-user mr-1"></i>${issue.reporter?.username || '알 수 없음'}</span>
                                     <span><i class="fas fa-calendar mr-1"></i>${createdDate}</span>
                                     ${issue.category ? `<span><i class="fas fa-tag mr-1"></i>${getCategoryText(issue.category)}</span>` : ''}
+                                    ${issue.photo_path ? '<span><i class="fas fa-camera mr-1"></i>사진 첨부</span>' : ''}
+                                </div>
+                                
+                                <!-- 워크플로우 액션 버튼들 -->
+                                <div class="flex items-center space-x-2 mt-3">
+                                    <button onclick="openDisposeModal(${issue.id})" 
+                                            class="px-3 py-1 bg-red-500 text-white text-sm rounded hover:bg-red-600 transition-colors">
+                                        <i class="fas fa-trash mr-1"></i>폐기
+                                    </button>
+                                    <button onclick="openReviewModal(${issue.id})" 
+                                            class="px-3 py-1 bg-blue-500 text-white text-sm rounded hover:bg-blue-600 transition-colors">
+                                        <i class="fas fa-edit mr-1"></i>검토
+                                    </button>
+                                    <button onclick="openStatusModal(${issue.id})" 
+                                            class="px-3 py-1 bg-green-500 text-white text-sm rounded hover:bg-green-600 transition-colors">
+                                        <i class="fas fa-check mr-1"></i>승인
+                                    </button>
                                 </div>
                             </div>
                             
                             <div class="flex items-center space-x-2 ml-4">
-                                ${issue.photo_path ? '<i class="fas fa-camera text-gray-400"></i>' : ''}
-                                <button onclick="event.stopPropagation(); markAsRead(${issue.id})" 
+                                <button onclick="markAsRead(${issue.id})" 
                                         class="p-2 text-gray-400 hover:text-blue-600 transition-colors"
                                         title="${isUnread ? '읽음 처리' : '읽음'}">
                                     <i class="fas fa-${isUnread ? 'envelope' : 'envelope-open'}"></i>
@@ -448,32 +619,41 @@
             }).join('');
         }
 
-        // 통계 업데이트
-        function updateStatistics() {
-            const newIssues = issues.filter(issue => issue.status === 'new').length;
-            const pendingIssues = issues.filter(issue => ['pending', 'processing'].includes(issue.status)).length;
-            const todayProcessed = issues.filter(issue => {
-                const today = new Date().toDateString();
-                return issue.updated_at && new Date(issue.updated_at).toDateString() === today;
-            }).length;
+        // 수신함 통계 로드 (실제 API 연동)
+        async function loadStatistics() {
+            try {
+                const response = await fetch('/api/inbox/statistics', {
+                    headers: {
+                        'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
+                        'Content-Type': 'application/json'
+                    }
+                });
 
-            document.getElementById('newIssuesCount').textContent = newIssues;
-            document.getElementById('pendingIssuesCount').textContent = pendingIssues;
-            document.getElementById('todayProcessedCount').textContent = todayProcessed;
-            document.getElementById('totalIssuesCount').textContent = issues.length;
+                if (response.ok) {
+                    const stats = await response.json();
+                    document.getElementById('newIssuesCount').textContent = stats.pending_review || 0;
+                    document.getElementById('pendingIssuesCount').textContent = stats.total_in_management || 0;
+                    document.getElementById('todayProcessedCount').textContent = stats.today_processed || 0;
+                    document.getElementById('totalIssuesCount').textContent = stats.total_issues || 0;
+                } else {
+                    console.error('통계 로드 실패');
+                }
+            } catch (error) {
+                console.error('통계 로드 오류:', error);
+            }
         }
 
         // 읽음 처리
         function markAsRead(issueId) {
             readStatus.add(issueId);
-            localStorage.setItem('issues_read_status', JSON.stringify([...readStatus]));
+            localStorage.setItem('inbox_read_status', JSON.stringify([...readStatus]));
             displayIssues();
         }
 
         // 모두 읽음 처리
         function markAllAsRead() {
             filteredIssues.forEach(issue => readStatus.add(issue.id));
-            localStorage.setItem('issues_read_status', JSON.stringify([...readStatus]));
+            localStorage.setItem('inbox_read_status', JSON.stringify([...readStatus]));
             displayIssues();
         }
 
@@ -485,10 +665,229 @@
         // 부적합 상세 보기
         function viewIssueDetail(issueId) {
             markAsRead(issueId);
-            // 상세 페이지로 이동 또는 모달 표시
             window.location.href = `/issue-view.html#detail-${issueId}`;
         }
 
+        // ===== 워크플로우 모달 관련 함수들 =====
+        let currentIssueId = null;
+
+        // 폐기 모달 열기
+        function openDisposeModal(issueId) {
+            currentIssueId = issueId;
+            document.getElementById('disposalReason').value = 'duplicate';
+            document.getElementById('customReason').value = '';
+            document.getElementById('customReasonDiv').classList.add('hidden');
+            document.getElementById('disposeModal').classList.remove('hidden');
+        }
+
+        // 폐기 모달 닫기
+        function closeDisposeModal() {
+            currentIssueId = null;
+            document.getElementById('disposeModal').classList.add('hidden');
+        }
+
+        // 사용자 정의 사유 토글
+        function toggleCustomReason() {
+            const reason = document.getElementById('disposalReason').value;
+            const customDiv = document.getElementById('customReasonDiv');
+            
+            if (reason === 'custom') {
+                customDiv.classList.remove('hidden');
+            } else {
+                customDiv.classList.add('hidden');
+            }
+        }
+
+        // 폐기 확인
+        async function confirmDispose() {
+            if (!currentIssueId) return;
+
+            const disposalReason = document.getElementById('disposalReason').value;
+            const customReason = document.getElementById('customReason').value;
+
+            // 사용자 정의 사유 검증
+            if (disposalReason === 'custom' && !customReason.trim()) {
+                alert('사용자 정의 폐기 사유를 입력해주세요.');
+                return;
+            }
+
+            try {
+                const response = await fetch(`/api/inbox/${currentIssueId}/dispose`, {
+                    method: 'POST',
+                    headers: {
+                        'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
+                        'Content-Type': 'application/json'
+                    },
+                    body: JSON.stringify({
+                        disposal_reason: disposalReason,
+                        custom_disposal_reason: disposalReason === 'custom' ? customReason : null
+                    })
+                });
+
+                if (response.ok) {
+                    const result = await response.json();
+                    alert(`부적합이 성공적으로 폐기되었습니다.\n사유: ${getDisposalReasonText(disposalReason)}`);
+                    closeDisposeModal();
+                    await loadIssues(); // 목록 새로고침
+                } else {
+                    const error = await response.json();
+                    throw new Error(error.detail || '폐기 처리에 실패했습니다.');
+                }
+            } catch (error) {
+                console.error('폐기 처리 오류:', error);
+                alert('폐기 처리 중 오류가 발생했습니다: ' + error.message);
+            }
+        }
+
+        // 검토 모달 열기
+        async function openReviewModal(issueId) {
+            currentIssueId = issueId;
+            
+            // 현재 부적합 정보 찾기
+            const issue = issues.find(i => i.id === issueId);
+            if (!issue) return;
+
+            // 원본 정보 표시
+            const originalInfo = document.getElementById('originalInfo');
+            const project = projects.find(p => p.id === issue.project_id);
+            originalInfo.innerHTML = `
+                <div class="space-y-2">
+                    <div><strong>프로젝트:</strong> ${project ? project.name : '미지정'}</div>
+                    <div><strong>카테고리:</strong> ${getCategoryText(issue.category)}</div>
+                    <div><strong>설명:</strong> ${issue.description}</div>
+                    <div><strong>등록자:</strong> ${issue.reporter?.username || '알 수 없음'}</div>
+                    <div><strong>등록일:</strong> ${new Date(issue.report_date).toLocaleDateString('ko-KR')}</div>
+                </div>
+            `;
+
+            // 프로젝트 옵션 업데이트
+            const reviewProjectSelect = document.getElementById('reviewProjectId');
+            reviewProjectSelect.innerHTML = '<option value="">프로젝트 선택</option>';
+            projects.forEach(project => {
+                const option = document.createElement('option');
+                option.value = project.id;
+                option.textContent = project.name;
+                if (project.id === issue.project_id) {
+                    option.selected = true;
+                }
+                reviewProjectSelect.appendChild(option);
+            });
+
+            // 현재 값들로 폼 초기화
+            document.getElementById('reviewCategory').value = issue.category;
+            document.getElementById('reviewDescription').value = issue.description;
+
+            document.getElementById('reviewModal').classList.remove('hidden');
+        }
+
+        // 검토 모달 닫기
+        function closeReviewModal() {
+            currentIssueId = null;
+            document.getElementById('reviewModal').classList.add('hidden');
+        }
+
+        // 검토 저장
+        async function saveReview() {
+            if (!currentIssueId) return;
+
+            const projectId = document.getElementById('reviewProjectId').value;
+            const category = document.getElementById('reviewCategory').value;
+            const description = document.getElementById('reviewDescription').value.trim();
+
+            if (!description) {
+                alert('설명을 입력해주세요.');
+                return;
+            }
+
+            try {
+                const response = await fetch(`/api/inbox/${currentIssueId}/review`, {
+                    method: 'POST',
+                    headers: {
+                        'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
+                        'Content-Type': 'application/json'
+                    },
+                    body: JSON.stringify({
+                        project_id: projectId ? parseInt(projectId) : null,
+                        category: category,
+                        description: description
+                    })
+                });
+
+                if (response.ok) {
+                    const result = await response.json();
+                    alert(`검토가 완료되었습니다.\n수정된 항목: ${result.modifications_count}개`);
+                    closeReviewModal();
+                    await loadIssues(); // 목록 새로고침
+                } else {
+                    const error = await response.json();
+                    throw new Error(error.detail || '검토 처리에 실패했습니다.');
+                }
+            } catch (error) {
+                console.error('검토 처리 오류:', error);
+                alert('검토 처리 중 오류가 발생했습니다: ' + error.message);
+            }
+        }
+
+        // 상태 모달 열기
+        function openStatusModal(issueId) {
+            currentIssueId = issueId;
+            
+            // 라디오 버튼 초기화
+            document.querySelectorAll('input[name="finalStatus"]').forEach(radio => {
+                radio.checked = false;
+            });
+            document.getElementById('statusNotes').value = '';
+            
+            document.getElementById('statusModal').classList.remove('hidden');
+        }
+
+        // 상태 모달 닫기
+        function closeStatusModal() {
+            currentIssueId = null;
+            document.getElementById('statusModal').classList.add('hidden');
+        }
+
+        // 상태 변경 확인
+        async function confirmStatus() {
+            if (!currentIssueId) return;
+
+            const selectedStatus = document.querySelector('input[name="finalStatus"]:checked');
+            if (!selectedStatus) {
+                alert('상태를 선택해주세요.');
+                return;
+            }
+
+            const reviewStatus = selectedStatus.value;
+            const notes = document.getElementById('statusNotes').value.trim();
+
+            try {
+                const response = await fetch(`/api/inbox/${currentIssueId}/status`, {
+                    method: 'POST',
+                    headers: {
+                        'Authorization': `Bearer ${localStorage.getItem('access_token')}`,
+                        'Content-Type': 'application/json'
+                    },
+                    body: JSON.stringify({
+                        review_status: reviewStatus,
+                        notes: notes || null
+                    })
+                });
+
+                if (response.ok) {
+                    const result = await response.json();
+                    alert(`상태가 성공적으로 변경되었습니다.\n${result.destination}으로 이동됩니다.`);
+                    closeStatusModal();
+                    await loadIssues(); // 목록 새로고침
+                } else {
+                    const error = await response.json();
+                    throw new Error(error.detail || '상태 변경에 실패했습니다.');
+                }
+            } catch (error) {
+                console.error('상태 변경 오류:', error);
+                alert('상태 변경 중 오류가 발생했습니다: ' + error.message);
+            }
+        }
+
         // 유틸리티 함수들
         function getStatusBadgeClass(status) {
             const statusMap = {
@@ -521,6 +920,17 @@
             return categoryMap[category] || category;
         }
 
+        function getDisposalReasonText(reason) {
+            const reasonMap = {
+                'duplicate': '중복',
+                'invalid_report': '잘못된 신고',
+                'not_applicable': '해당 없음',
+                'spam': '스팸/오류',
+                'custom': '직접 입력'
+            };
+            return reasonMap[reason] || reason;
+        }
+
         function getTimeAgo(date) {
             const now = new Date();
             const diffMs = now - date;