diff --git a/apps/wr/app/stats/rswtStat/page.tsx b/apps/wr/app/stats/rswtStat/page.tsx
index e693cafec..99a8bc4f3 100644
--- a/apps/wr/app/stats/rswtStat/page.tsx
+++ b/apps/wr/app/stats/rswtStat/page.tsx
@@ -72,7 +72,7 @@ export default function RswtStat() {
         return {
           ...item,
           ctpvCd: item.cityText === '전체' ? '전국' : item.cityText,
-          cityText: item.cityText === '전체' ? '전국' : item.cityText 
+          cityText: item.cityText === '전체' ? '전국' : item.cityText
         };
       }) : [];
 
@@ -80,12 +80,15 @@ export default function RswtStat() {
   }, [code, rswtStatList]);
 
   const excelDetailDownLoad = () => {
+
     const sidoList = new Set<string>();
     const sidoDataMap = new Map<string, (string | number)[]>(); // 시도별 데이터를 저장할 Map
     const sidoDetailMap = new Map<string, (string | number)[][]>(); // 시도별 상세 데이터를 저장할 Map
 
     // 먼저 시도별 상세 데이터를 그룹화
-    rswtDetailList.forEach((item: RswtStatProps[]) => {
+    const transformedRswtDetailList = rswtDetailList.map((originItem: RswtStatProps[]) => {
+      // rswtDetailList.forEach((item: RswtStatProps[]) => {
+      const item = [...originItem]; // 원본 복사
       const sidoVal = item.at(0)?.toString().trim();
       const sigunVal = item.at(1)?.toString().trim();
       let sidoText = '';
@@ -127,10 +130,11 @@ export default function RswtStat() {
         }
         sidoDataMap.set(sidoText, initialData);
       }
+      return item;
     });
 
     // 시도별 합계 계산
-    rswtDetailList.forEach((item: RswtStatProps[]) => {
+    transformedRswtDetailList.forEach((item: RswtStatProps[]) => {
       const sidoText = item[0]?.toString();
       if (sidoText && sidoDataMap.has(sidoText)) {
         const sidoData = sidoDataMap.get(sidoText)!;