diff --git a/src/app/api/suitable/route.ts b/src/app/api/suitable/route.ts
index 888e663..c9ca8c4 100644
--- a/src/app/api/suitable/route.ts
+++ b/src/app/api/suitable/route.ts
@@ -12,7 +12,7 @@ import { Suitable } from '@/types/Suitable'
  *
  * @apiBody {FormData} form-data
  * @apiBody {String} form-data.ids 메인 ID 목록 (쉼표로 구분된 문자열)
- * @apiBody {String} form-data.detailIds 상세 ID 목록 (쉼표로 구분된 문자열)
+ * @apiBody {String} [form-data.detailIds] 상세 ID 목록 (쉼표로 구분된 문자열)
  *
  * @apiExample {curl} Example usage:
  *     curl -X POST \
@@ -44,10 +44,10 @@ export async function POST(request: NextRequest) {
   try {
     const body: Record<string, string> = await request.json()
     const ids = body.ids
-    const detailIds = body.detailIds
+    const detailIds = body.detailIds || ''
 
     /* 파라미터 체크 */
-    if (ids === '' || detailIds === '') {
+    if (ids === '') {
       return NextResponse.json({ error: '필수 파라미터가 누락되었습니다' }, { status: 400 })
     }
 
@@ -71,7 +71,7 @@ export async function POST(request: NextRequest) {
             , msd_json.memo
           FROM ms_suitable_detail msd_json
             WHERE msd.main_id = msd_json.main_id
-              AND msd_json.id IN (:detailIds)
+              --detailIds AND msd_json.id IN (:detailIds)
           FOR JSON PATH
         ) AS detail
       FROM ms_suitable_detail msd
@@ -86,7 +86,10 @@ export async function POST(request: NextRequest) {
 
     /* 검색 조건 설정 */
     query = query.replaceAll(':mainIds', ids)
-    query = query.replaceAll(':detailIds', detailIds)
+    if (detailIds) {
+      query = query.replace('--detailIds ', '')
+      query = query.replace(':detailIds', detailIds)
+    }
 
     const suitable: Suitable[] = await prisma.$queryRawUnsafe(query)
 
diff --git a/src/components/popup/SuitableDetailPopup.tsx b/src/components/popup/SuitableDetailPopup.tsx
index 461ac1b..6c41daf 100644
--- a/src/components/popup/SuitableDetailPopup.tsx
+++ b/src/components/popup/SuitableDetailPopup.tsx
@@ -68,7 +68,7 @@ export default function SuitableDetailPopup() {
                       <div className="check-pop-data-txt">{toCodeName(SUITABLE_HEAD_CODE.ROOF_SH_CD, item.roofShCd)}</div>
                     </div>
                     <div className="check-pop-data-table-wrap">
-                      {toSuitableDetail(item.detail).map((subItem: SuitableDetail) => (
+                      {toSuitableDetail(item.detail)?.map((subItem: SuitableDetail) => (
                         <div className="check-pop-data-table" key={subItem.id}>
                           <div className="pop-data-table-head">
                             <div className="pop-data-table-head-name">{toCodeName(SUITABLE_HEAD_CODE.TRESTLE_MFPC_CD, subItem.trestleMfpcCd)}</div>
diff --git a/src/components/suitable/SuitableList.tsx b/src/components/suitable/SuitableList.tsx
index a0dc5be..3e87f54 100644
--- a/src/components/suitable/SuitableList.tsx
+++ b/src/components/suitable/SuitableList.tsx
@@ -83,7 +83,7 @@ export default function SuitableList() {
             </div>
           </div>
           <ul className="reference-list check">
-            {toSuitableDetail(item.detail).map((subItem: SuitableDetail) => (
+            {toSuitableDetail(item.detail)?.map((subItem: SuitableDetail) => (
               <li className="reference-item" key={subItem.id}>
                 <div className="check-item-wrap">
                   <div className="check-form-box light">
diff --git a/src/hooks/useSuitable.ts b/src/hooks/useSuitable.ts
index 8ee7ca7..4acb024 100644
--- a/src/hooks/useSuitable.ts
+++ b/src/hooks/useSuitable.ts
@@ -84,7 +84,7 @@ export function useSuitable() {
   const getSuitableDetails = async (ids: string, detailIds?: string): Promise<Suitable[]> => {
     try {
       const params: Record<string, string> = { ids: ids }
-      if (detailIds) params.detailIds = detailIds
+      if (detailIds?.trim()) params.detailIds = detailIds
       const response = await axiosInstance(null).post<Suitable[]>('/api/suitable', params)
       return response.data
     } catch (error) {
@@ -150,6 +150,7 @@ export function useSuitable() {
    */
   const toSuitableDetailIds = (suitableDetailString: string): Set<number> => {
     try {
+      if (!suitableDetailString) return new Set()
       return new Set<number>(JSON.parse(suitableDetailString).map(({ id }: { id: number }) => id))
     } catch (error) {
       console.error(`지붕재 적합성 detail 데이터 파싱 실패: ${error}`)