diff --git a/backend/database/__pycache__/schemas.cpython-311.pyc b/backend/database/__pycache__/schemas.cpython-311.pyc
index 459f413..c6585bd 100644
Binary files a/backend/database/__pycache__/schemas.cpython-311.pyc and b/backend/database/__pycache__/schemas.cpython-311.pyc differ
diff --git a/backend/database/schemas.py b/backend/database/schemas.py
index aa6806f..8932562 100644
--- a/backend/database/schemas.py
+++ b/backend/database/schemas.py
@@ -163,6 +163,9 @@ class IssueStatusUpdateRequest(BaseModel):
     review_status: ReviewStatus
     notes: Optional[str] = None
     completion_photo: Optional[str] = None  # 완료 사진 (Base64)
+    solution: Optional[str] = None  # 해결방안
+    responsible_department: Optional[DepartmentType] = None  # 담당부서
+    responsible_person: Optional[str] = None  # 담당자
 
 class ManagementUpdateRequest(BaseModel):
     """관리함에서 사용할 필드 업데이트 요청"""
diff --git a/backend/routers/__pycache__/inbox.cpython-311.pyc b/backend/routers/__pycache__/inbox.cpython-311.pyc
index d1dd7b5..993a573 100644
Binary files a/backend/routers/__pycache__/inbox.cpython-311.pyc and b/backend/routers/__pycache__/inbox.cpython-311.pyc differ
diff --git a/backend/routers/inbox.py b/backend/routers/inbox.py
index eade902..85f22e6 100644
--- a/backend/routers/inbox.py
+++ b/backend/routers/inbox.py
@@ -269,9 +269,21 @@ async def update_issue_status(
         except Exception as e:
             raise HTTPException(status_code=400, detail=f"완료 사진 저장 실패: {str(e)}")
     
-    # 완료 상태로 변경 시 완료 확인일 설정
+    # 완료 상태로 변경 시 추가 정보 처리
     if status_request.review_status == ReviewStatus.completed:
         issue.actual_completion_date = datetime.now().date()
+        
+        # 해결방안 저장
+        if status_request.solution:
+            issue.solution = status_request.solution
+        
+        # 담당부서 저장
+        if status_request.responsible_department:
+            issue.responsible_department = status_request.responsible_department
+        
+        # 담당자 저장
+        if status_request.responsible_person:
+            issue.responsible_person = status_request.responsible_person
     
     # 노트가 있으면 detail_notes에 추가
     if status_request.notes:
diff --git a/frontend/issues-inbox.html b/frontend/issues-inbox.html
index eaa3aa6..f80900e 100644
--- a/frontend/issues-inbox.html
+++ b/frontend/issues-inbox.html
@@ -427,19 +427,62 @@
                                   placeholder="처리 내용이나 특이사항을 입력하세요..."></textarea>
                     </div>
                     
-                    <!-- 완료 사진 업로드 (완료 상태 선택 시에만 표시) -->
-                    <div id="completionPhotoSection" class="hidden">
-                        <label class="block text-sm font-medium text-gray-700 mb-2">
-                            <i class="fas fa-camera text-green-500 mr-1"></i>완료 사진 (1장)
-                        </label>
-                        <input type="file" id="completionPhotoInput" accept="image/*" 
-                               class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm"
-                               onchange="handleCompletionPhotoSelect(event)">
-                        <div id="completionPhotoPreview" class="mt-2 hidden">
-                            <img id="completionPhotoImg" src="" alt="완료 사진 미리보기" 
-                                 class="w-full max-h-40 object-cover rounded-lg border">
+                    <!-- 완료 관련 추가 정보 (완료 상태 선택 시에만 표시) -->
+                    <div id="completionSection" class="hidden space-y-4">
+                        <!-- 완료 사진 업로드 -->
+                        <div>
+                            <label class="block text-sm font-medium text-gray-700 mb-2">
+                                <i class="fas fa-camera text-green-500 mr-1"></i>완료 사진 (1장, 선택사항)
+                            </label>
+                            <input type="file" id="completionPhotoInput" accept="image/*" 
+                                   class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm"
+                                   onchange="handleCompletionPhotoSelect(event)">
+                            <div id="completionPhotoPreview" class="mt-2 hidden">
+                                <img id="completionPhotoImg" src="" alt="완료 사진 미리보기" 
+                                     class="w-full max-h-40 object-cover rounded-lg border">
+                            </div>
+                        </div>
+                        
+                        <!-- 해결방안 입력 -->
+                        <div>
+                            <label class="block text-sm font-medium text-gray-700 mb-2">
+                                <i class="fas fa-lightbulb text-yellow-500 mr-1"></i>해결방안 (선택사항)
+                            </label>
+                            <textarea id="solutionInput" rows="3" class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm" 
+                                      placeholder="어떻게 해결하였는지 입력하세요... (빈칸으로 두고 관리함에서 입력해도 됩니다)"></textarea>
+                        </div>
+                        
+                        <!-- 해결한 부서 -->
+                        <div>
+                            <label class="block text-sm font-medium text-gray-700 mb-2">
+                                <i class="fas fa-building text-blue-500 mr-1"></i>상기 문제를 해결한 부서 (선택사항)
+                            </label>
+                            <select id="responsibleDepartmentInput" class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm">
+                                <option value="">부서 선택 (관리함에서 입력 가능)</option>
+                                <option value="production">생산</option>
+                                <option value="quality">품질</option>
+                                <option value="purchasing">구매</option>
+                                <option value="design">설계</option>
+                                <option value="sales">영업</option>
+                            </select>
+                        </div>
+                        
+                        <!-- 해결한 사람 -->
+                        <div>
+                            <label class="block text-sm font-medium text-gray-700 mb-2">
+                                <i class="fas fa-user text-purple-500 mr-1"></i>해결한 사람 (선택사항)
+                            </label>
+                            <input type="text" id="responsiblePersonInput" 
+                                   class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm"
+                                   placeholder="담당자 이름 입력 (관리함에서 입력 가능)">
+                        </div>
+                        
+                        <div class="bg-blue-50 p-3 rounded-lg">
+                            <p class="text-xs text-blue-600">
+                                <i class="fas fa-info-circle mr-1"></i>
+                                위 정보들은 선택사항입니다. 빈칸으로 두고 관리함에서 나중에 입력하셔도 됩니다.
+                            </p>
                         </div>
-                        <p class="text-xs text-gray-500 mt-1">완료 상태로 변경 시 완료 사진을 업로드할 수 있습니다.</p>
                     </div>
                     
                     <div class="flex justify-end space-x-3">
@@ -1225,25 +1268,31 @@
         function closeStatusModal() {
             currentIssueId = null;
             document.getElementById('statusModal').classList.add('hidden');
-            // 완료 사진 관련 초기화
-            document.getElementById('completionPhotoSection').classList.add('hidden');
+            // 완료 관련 필드 초기화
+            document.getElementById('completionSection').classList.add('hidden');
             document.getElementById('completionPhotoInput').value = '';
             document.getElementById('completionPhotoPreview').classList.add('hidden');
+            document.getElementById('solutionInput').value = '';
+            document.getElementById('responsibleDepartmentInput').value = '';
+            document.getElementById('responsiblePersonInput').value = '';
             completionPhotoBase64 = null;
         }
 
-        // 완료 사진 섹션 토글
+        // 완료 섹션 토글
         function toggleCompletionPhotoSection() {
             const selectedStatus = document.querySelector('input[name="finalStatus"]:checked');
-            const photoSection = document.getElementById('completionPhotoSection');
+            const completionSection = document.getElementById('completionSection');
             
             if (selectedStatus && selectedStatus.value === 'completed') {
-                photoSection.classList.remove('hidden');
+                completionSection.classList.remove('hidden');
             } else {
-                photoSection.classList.add('hidden');
-                // 완료 사진 초기화
+                completionSection.classList.add('hidden');
+                // 완료 관련 필드 초기화
                 document.getElementById('completionPhotoInput').value = '';
                 document.getElementById('completionPhotoPreview').classList.add('hidden');
+                document.getElementById('solutionInput').value = '';
+                document.getElementById('responsibleDepartmentInput').value = '';
+                document.getElementById('responsiblePersonInput').value = '';
                 completionPhotoBase64 = null;
             }
         }
@@ -1296,22 +1345,36 @@
             const reviewStatus = selectedStatus.value;
             const notes = document.getElementById('statusNotes').value.trim();
 
-            // 완료 상태인데 완료 사진이 없으면 확인
-            if (reviewStatus === 'completed' && !completionPhotoBase64) {
-                if (!confirm('완료 사진을 업로드하지 않고 완료 처리하시겠습니까?')) {
-                    return;
-                }
-            }
-
             try {
                 const requestBody = {
                     review_status: reviewStatus,
                     notes: notes || null
                 };
 
-                // 완료 사진이 있으면 추가
-                if (reviewStatus === 'completed' && completionPhotoBase64) {
-                    requestBody.completion_photo = completionPhotoBase64;
+                // 완료 상태일 때 추가 정보 수집
+                if (reviewStatus === 'completed') {
+                    // 완료 사진
+                    if (completionPhotoBase64) {
+                        requestBody.completion_photo = completionPhotoBase64;
+                    }
+                    
+                    // 해결방안
+                    const solution = document.getElementById('solutionInput').value.trim();
+                    if (solution) {
+                        requestBody.solution = solution;
+                    }
+                    
+                    // 담당부서
+                    const responsibleDepartment = document.getElementById('responsibleDepartmentInput').value;
+                    if (responsibleDepartment) {
+                        requestBody.responsible_department = responsibleDepartment;
+                    }
+                    
+                    // 담당자
+                    const responsiblePerson = document.getElementById('responsiblePersonInput').value.trim();
+                    if (responsiblePerson) {
+                        requestBody.responsible_person = responsiblePerson;
+                    }
                 }
 
                 const response = await fetch(`/api/inbox/${currentIssueId}/status`, {