diff --git a/src/app/api/suitable/list/route.ts b/src/app/api/suitable/list/route.ts
index e19e702..6f9260c 100644
--- a/src/app/api/suitable/list/route.ts
+++ b/src/app/api/suitable/list/route.ts
@@ -65,9 +65,11 @@ export async function GET(request: NextRequest) {
 
     const suitable: Suitable[] = await prisma.$queryRawUnsafe(query, pageNumber, itemPerPage)
 
-    // console.log(`검색 조건 :::: 카테고리: ${category}, 키워드: ${keyword}`)
-
-    return NextResponse.json(suitable)
+    return NextResponse.json(suitable, {
+      headers: {
+        'spinner-state': 'true',
+      },
+    })
   } catch (error) {
     console.error('❌ 데이터 조회 중 오류가 발생했습니다:', error)
     return NextResponse.json({ error: '데이터 조회 중 오류가 발생했습니다' }, { status: 500 })
diff --git a/src/components/popup/SuitableDetailPopup.tsx b/src/components/popup/SuitableDetailPopup.tsx
index 31ad8ed..e4635c0 100644
--- a/src/components/popup/SuitableDetailPopup.tsx
+++ b/src/components/popup/SuitableDetailPopup.tsx
@@ -6,6 +6,7 @@ import SuitableDetailPopupButton from './SuitableDetailPopupButton'
 import { useSuitable } from '@/hooks/useSuitable'
 import { usePopupController } from '@/store/popupController'
 import { useSuitableStore } from '@/store/useSuitableStore'
+import { useSpinnerStore } from '@/store/spinnerStore'
 import { SUITABLE_HEAD_CODE, type Suitable, type SuitableDetail } from '@/types/Suitable'
 
 export default function SuitableDetailPopup() {
@@ -15,7 +16,7 @@ export default function SuitableDetailPopup() {
 
   const [openItems, setOpenItems] = useState<Set<number>>(new Set())
 
-  // 아이템 열기/닫기
+  /* 아이템 열기/닫기 */
   const toggleItemOpen = useCallback((itemId: number) => {
     setOpenItems((prev) => {
       const newOpenItems = new Set(prev)
@@ -24,6 +25,11 @@ export default function SuitableDetailPopup() {
     })
   }, [])
 
+  /* 데이터 로딩 상태 처리 */
+  useEffect(() => {
+    useSpinnerStore.getState().setIsShow(isSelectedSuitablesLoading)
+  }, [isSelectedSuitablesLoading])
+
   useEffect(() => {
     setSelectedItemsSearching(true)
   }, [])
@@ -45,60 +51,56 @@ export default function SuitableDetailPopup() {
           </div>
           <div className="modal-body">
             <div className="compliance-check-pop-wrap">
-              {isSelectedSuitablesLoading ? (
-                <div>Loading...</div>
-              ) : (
-                selectedSuitables?.map((item: Suitable) => (
-                  <div className={`compliance-check-bx ${openItems.has(item.id) ? 'act' : ''}`} key={item.id}>
-                    <div className="check-name-wrap">
-                      <div className="check-name">{item.productName}</div>
-                      <div className="check-name-btn">
-                        <button className="bx-btn" onClick={() => toggleItemOpen(item.id)}></button>
-                      </div>
-                    </div>
-                    <div className="compliance-check-pop-contents">
-                      <div className="check-pop-data-wrap">
-                        <div className="check-pop-data-tit">屋根技研 支持瓦</div>
-                        <div className="check-pop-data-txt">{toCodeName(SUITABLE_HEAD_CODE.MANU_FT_CD, item.manuFtCd)}</div>
-                      </div>
-                      <div className="check-pop-data-wrap">
-                        <div className="check-pop-data-tit">屋根材</div>
-                        <div className="check-pop-data-txt">{toCodeName(SUITABLE_HEAD_CODE.ROOF_MT_CD, item.roofMtCd)}</div>
-                      </div>
-                      <div className="check-pop-data-wrap">
-                        <div className="check-pop-data-tit">金具タイプ</div>
-                        <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) => (
-                          <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>
-                              <div className="pop-data-table-head-icon">
-                                <div className="compliance-icon">
-                                  <Image src={suitableCheckIcon(subItem.trestleManufacturerProductName)} width={22} height={22} alt="" />
-                                </div>
-                                {subItem.memo && (
-                                  <div className="compliance-icon">
-                                    <Image src={'/assets/images/sub/compliance_tip_icon.svg'} width={22} height={22} alt=""></Image>
-                                  </div>
-                                )}
-                              </div>
-                            </div>
-                            <div className="pop-data-table-body">{suitableCheckMemo(subItem.trestleManufacturerProductName)}</div>
-                            {subItem.memo && (
-                              <div className="pop-data-table-footer">
-                                <div className="pop-data-table-footer-unit">備考</div>
-                                <div className="pop-data-table-footer-data">{subItem.memo}</div>
-                              </div>
-                            )}
-                          </div>
-                        ))}
-                      </div>
+              {selectedSuitables?.map((item: Suitable) => (
+                <div className={`compliance-check-bx ${openItems.has(item.id) ? 'act' : ''}`} key={item.id}>
+                  <div className="check-name-wrap">
+                    <div className="check-name">{item.productName}</div>
+                    <div className="check-name-btn">
+                      <button className="bx-btn" onClick={() => toggleItemOpen(item.id)}></button>
                     </div>
                   </div>
-                ))
-              )}
+                  <div className="compliance-check-pop-contents">
+                    <div className="check-pop-data-wrap">
+                      <div className="check-pop-data-tit">屋根技研 支持瓦</div>
+                      <div className="check-pop-data-txt">{toCodeName(SUITABLE_HEAD_CODE.MANU_FT_CD, item.manuFtCd)}</div>
+                    </div>
+                    <div className="check-pop-data-wrap">
+                      <div className="check-pop-data-tit">屋根材</div>
+                      <div className="check-pop-data-txt">{toCodeName(SUITABLE_HEAD_CODE.ROOF_MT_CD, item.roofMtCd)}</div>
+                    </div>
+                    <div className="check-pop-data-wrap">
+                      <div className="check-pop-data-tit">金具タイプ</div>
+                      <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) => (
+                        <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>
+                            <div className="pop-data-table-head-icon">
+                              <div className="compliance-icon">
+                                <Image src={suitableCheckIcon(subItem.trestleManufacturerProductName)} width={22} height={22} alt="" />
+                              </div>
+                              {subItem.memo && (
+                                <div className="compliance-icon">
+                                  <Image src={'/assets/images/sub/compliance_tip_icon.svg'} width={22} height={22} alt=""></Image>
+                                </div>
+                              )}
+                            </div>
+                          </div>
+                          <div className="pop-data-table-body">{suitableCheckMemo(subItem.trestleManufacturerProductName)}</div>
+                          {subItem.memo && (
+                            <div className="pop-data-table-footer">
+                              <div className="pop-data-table-footer-unit">備考</div>
+                              <div className="pop-data-table-footer-data">{subItem.memo}</div>
+                            </div>
+                          )}
+                        </div>
+                      ))}
+                    </div>
+                  </div>
+                </div>
+              ))}
             </div>
             <SuitableDetailPopupButton />
           </div>
diff --git a/src/components/suitable/SuitableList.tsx b/src/components/suitable/SuitableList.tsx
index 9db030d..918776a 100644
--- a/src/components/suitable/SuitableList.tsx
+++ b/src/components/suitable/SuitableList.tsx
@@ -6,6 +6,7 @@ import SuitableButton from './SuitableButton'
 import SuitableNoData from './SuitableNoData'
 import { useSuitable } from '@/hooks/useSuitable'
 import { useSuitableStore } from '@/store/useSuitableStore'
+import { useSpinnerStore } from '@/store/spinnerStore'
 import { SUITABLE_HEAD_CODE, type Suitable, type SuitableDetail } from '@/types/Suitable'
 
 export default function SuitableList() {
@@ -24,7 +25,7 @@ export default function SuitableList() {
   const [openItems, setOpenItems] = useState<Set<number>>(new Set())
   const observerTarget = useRef<HTMLDivElement>(null)
 
-  // 선택된 아이템 확인 - 메인 하위 아이템 indeterminate 확인
+  /* 선택된 아이템 확인 - 메인 하위 아이템 indeterminate 확인 */
   const isMainIndeterminate = useMemo(
     () => (mainId: number, detailCnt: number) => {
       const mainItem = selectedItems.get(mainId)
@@ -34,7 +35,7 @@ export default function SuitableList() {
     [selectedItems],
   )
 
-  // 선택된 아이템 확인
+  /* 선택된 아이템 확인 */
   const isItemSelected = useCallback(
     (mainId: number, detailId?: number): boolean => {
       const mainItem = selectedItems.get(mainId)
@@ -45,7 +46,7 @@ export default function SuitableList() {
     [selectedItems],
   )
 
-  // 아이템 클릭
+  /* 아이템 클릭 */
   const handleItemClick = useCallback(
     (mainId: number, detailId?: number, detailIds?: Set<number>): void => {
       setSelectedItemsSearching(false)
@@ -54,7 +55,7 @@ export default function SuitableList() {
     [isItemSelected, addSelectedItem, removeSelectedItem],
   )
 
-  // 아이템 열기/닫기
+  /* 아이템 열기/닫기 */
   const toggleItemOpen = useCallback((itemId: number) => {
     setOpenItems((prev) => {
       const newOpenItems = new Set(prev)
@@ -63,7 +64,7 @@ export default function SuitableList() {
     })
   }, [])
 
-  // 아이템 렌더링
+  /* 아이템 렌더링 */
   const renderItem = useCallback(
     (item: Suitable) => {
       return (
@@ -115,10 +116,10 @@ export default function SuitableList() {
     [isItemSelected, openItems, handleItemClick, toggleItemOpen, toCodeName, toSuitableDetail],
   )
 
-  // 아이템 리스트
+  /* 조회 데이터 리스트 */
   const suitableList = useMemo(() => suitables?.pages.flat() ?? [], [suitables?.pages])
 
-  // Intersection Observer 설정
+  /* Intersection Observer 설정 */
   useEffect(() => {
     const observer = new IntersectionObserver(
       (entries) => {
@@ -128,7 +129,7 @@ export default function SuitableList() {
       },
       {
         threshold: 0,
-        rootMargin: '100px',
+        rootMargin: `${window.innerHeight * 0.2}px`,
       },
     )
 
@@ -139,15 +140,18 @@ export default function SuitableList() {
     return () => observer.disconnect()
   }, [hasNextPage, isFetchingNextPage, fetchNextPage])
 
-  if (isLoading) return <div>Loading...</div>
+  /* 데이터 로딩 상태 처리 */
+  useEffect(() => {
+    useSpinnerStore.getState().setIsShow(isLoading || isFetchingNextPage)
+  }, [isLoading, isFetchingNextPage])
+
+  /* 조회 데이터 없는 경우 */
   if (!suitableList.length) return <SuitableNoData />
 
   return (
     <>
       {suitableList.map(renderItem)}
-      <div ref={observerTarget} className="loading-indicator">
-        {isFetchingNextPage && <div className="loading-more">데이터를 불러오는 중...</div>}
-      </div>
+      <div ref={observerTarget} />
       <SuitableButton />
     </>
   )
diff --git a/src/hooks/useAxios.ts b/src/hooks/useAxios.ts
index a3402bc..27b04a8 100644
--- a/src/hooks/useAxios.ts
+++ b/src/hooks/useAxios.ts
@@ -9,9 +9,10 @@ export function useAxios() {
   }
 
   const responseHandler = (response: AxiosResponse) => {
-    // if (response.headers['spinner-state'] === undefined) {
-    useSpinnerStore.getState().setIsShow(false)
-    // }
+    /* spinner 조작 커스텀이 필요한 경우 api 응답 헤더에 spinner-state: true 추가 */
+    if (!response.headers['spinner-state']) {
+      useSpinnerStore.getState().setIsShow(false)
+    }
     response.data = transferResponse(response)
     return response
   }