diff --git a/apps/st/src/components/statistics/verification/ImrVerificationHistory.tsx b/apps/st/src/components/statistics/verification/ImrVerificationHistory.tsx
index 583f141dc..852d21d08 100644
--- a/apps/st/src/components/statistics/verification/ImrVerificationHistory.tsx
+++ b/apps/st/src/components/statistics/verification/ImrVerificationHistory.tsx
@@ -90,6 +90,7 @@ const ImrVerificationHistory = () => {
         useState<StAnlsMstResponse | null>(null);
     const [selectedDetail, setSelectedDetail] =
         useState<StAnlsRsltResponse | null>(null);
+    const [isDownloading, setIsDownloading] = useState<boolean>(false);
 
     // Area B Grid State
     const [gridRowData, setGridRowData] = useState<
@@ -230,6 +231,29 @@ const ImrVerificationHistory = () => {
         setDateRange(defaultRange);
     };
 
+    const handleDownload = async () => {
+        if (!selectedHistory || isDownloading) return;
+        setIsDownloading(true);
+
+        try {
+            const blob = await stAnlsRsltApi.downloadExcelImr(
+                selectedHistory.anlsSn,
+            );
+            const url = window.URL.createObjectURL(blob);
+            const a = document.createElement("a");
+            a.href = url;
+            a.download = `IMR_분석결과.xlsx`;
+            document.body.appendChild(a);
+            a.click();
+            window.URL.revokeObjectURL(url);
+            document.body.removeChild(a);
+        } catch (error) {
+            console.error("Failed to download IMR excel", error);
+        } finally {
+            setIsDownloading(false);
+        }
+    };
+
     const chartOptions: ChartOptions<"line"> = useMemo(
         () => ({
             responsive: true,
@@ -442,16 +466,11 @@ const ImrVerificationHistory = () => {
                         <Button
                             color="green"
                             disabled={
-                                !detailData || detailData.content.length === 0
+                                !detailData ||
+                                detailData.content.length === 0 ||
+                                isDownloading
                             }
-                            onClick={() => {
-                                if (selectedHistory) {
-                                    stAnlsRsltApi.downloadExcel(
-                                        selectedHistory.anlsSn,
-                                        0,
-                                    );
-                                }
-                            }}
+                            onClick={handleDownload}
                         >
                             다운로드
                         </Button>
diff --git a/apps/st/src/entities/statistics/api/queries.ts b/apps/st/src/entities/statistics/api/queries.ts
index 9a389bcbf..0f0a9b0fb 100644
--- a/apps/st/src/entities/statistics/api/queries.ts
+++ b/apps/st/src/entities/statistics/api/queries.ts
@@ -14,11 +14,7 @@ export const useStAnlsSidoCombo = () => {
 
 export const useStAnlsSigunguCombo = (sidoCd: string) => {
     return useQuery({
-        queryKey: [
-            ENDPOINT.STATVERIFY_SERVICE.ST_ANLS_MST,
-            "sigungu",
-            sidoCd,
-        ],
+        queryKey: [ENDPOINT.STATVERIFY_SERVICE.ST_ANLS_MST, "sigungu", sidoCd],
         queryFn: () => stAnlsMstApi.getSigunguCombo(sidoCd),
         enabled: Boolean(sidoCd),
     });
@@ -40,7 +36,7 @@ export const useStAnlsRsltList = (
                 anlsSn,
                 vrfcTrgtSn: Number(vrfcTrgtSn),
                 page: 0,
-                size: 1000,
+                size: 15000,
                 sort: "admdstCd,asc",
             }),
         enabled: !!anlsSn && !!vrfcTrgtSn,
diff --git a/apps/st/src/entities/statistics/api/statistics-analysis-result-api.ts b/apps/st/src/entities/statistics/api/statistics-analysis-result-api.ts
index fa8983233..2e62fab3c 100644
--- a/apps/st/src/entities/statistics/api/statistics-analysis-result-api.ts
+++ b/apps/st/src/entities/statistics/api/statistics-analysis-result-api.ts
@@ -60,6 +60,17 @@ export class StAnlsRsltApiService {
 
         return response.data;
     }
+
+    public async downloadExcelImr(anlsSn: number): Promise<Blob> {
+        const response = await client.get<Blob>(
+            `${ENDPOINT.STATVERIFY_SERVICE.ST_ANLS_RSLT}/excel-down/imr/${anlsSn}`,
+            {
+                responseType: "blob",
+            },
+        );
+
+        return response.data;
+    }
 }
 
 export const stAnlsRsltApi = new StAnlsRsltApiService();