diff --git a/src/app/(main)/m/admin/daily-order-inventory/page.tsx b/src/app/(main)/m/admin/daily-order-inventory/page.tsx
index 67a699b..2d185d5 100644
--- a/src/app/(main)/m/admin/daily-order-inventory/page.tsx
+++ b/src/app/(main)/m/admin/daily-order-inventory/page.tsx
@@ -25,7 +25,8 @@ const fmt = (n: number) => Number(n || 0).toLocaleString("ko-KR");
 const today = () => new Date().toISOString().slice(0, 10);
 
 export default function DailyOrderInventoryPage() {
-  const [targetDate, setTargetDate] = useState<string>(today());
+  const [startDate, setStartDate] = useState<string>(today());
+  const [endDate, setEndDate] = useState<string>(today());
   const [keyword, setKeyword] = useState("");
   const [warehouses, setWarehouses] = useState<Wh[]>([]);
   const [items, setItems] = useState<ItemRow[]>([]);
@@ -37,7 +38,7 @@ export default function DailyOrderInventoryPage() {
       const res = await fetch("/api/m/admin/daily-order-inventory", {
         method: "POST",
         headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({ targetDate, keyword }),
+        body: JSON.stringify({ startDate, endDate, keyword }),
       });
       if (res.ok) {
         const j = await res.json();
@@ -50,7 +51,7 @@ export default function DailyOrderInventoryPage() {
     } finally {
       setLoading(false);
     }
-  }, [targetDate, keyword]);
+  }, [startDate, endDate, keyword]);
 
   useEffect(() => { load(); }, [load]);
 
@@ -75,7 +76,8 @@ export default function DailyOrderInventoryPage() {
       { header: "분류", key: "KIND" },
       ...items.map((it) => ({ header: it.ITEM_NAME, key: it.ITEM_NAME })),
     ];
-    downloadXlsx(`일자별발주재고_${targetDate}`, data, cols);
+    const range = startDate === endDate ? startDate : `${startDate}_${endDate}`;
+    downloadXlsx(`일자별발주재고_${range}`, data, cols);
   };
 
   return (
@@ -87,23 +89,44 @@ export default function DailyOrderInventoryPage() {
             일자별 발주/재고 현황
           </h1>
           <p className="text-xs text-slate-500 mt-0.5">
-            선택일에 <b>판매 가능</b>한 품목을 헤더로, 각 창고를 좌측에 배치한 매트릭스.
-            발주수량 = 그 날짜의 발주(REQUESTED는 거래처 default 창고로 가상 배정 / APPROVED 이후는 출고 창고). 재고수량 = 해당 창고 현재고.
+            선택 기간에 <b>판매 가능</b>했던 품목을 헤더로, 각 창고를 좌측에 배치한 매트릭스.
+            발주수량 = 기간 내 발주 합계(REQUESTED는 거래처 default 창고로 가상 배정 / APPROVED 이후는 출고 창고). 재고수량 = 해당 창고 현재고(기간 무관 현재 시점).
           </p>
         </div>
         <div className="flex items-center gap-2 flex-wrap">
           <input
             type="date"
-            value={targetDate}
-            onChange={(e) => setTargetDate(e.target.value)}
+            value={startDate}
+            max={endDate || undefined}
+            onChange={(e) => setStartDate(e.target.value)}
+            className="h-9 px-3 rounded border border-slate-300 text-sm"
+          />
+          <span className="text-slate-400 text-sm">~</span>
+          <input
+            type="date"
+            value={endDate}
+            min={startDate || undefined}
+            onChange={(e) => setEndDate(e.target.value)}
             className="h-9 px-3 rounded border border-slate-300 text-sm"
           />
           <button
-            onClick={() => setTargetDate(today())}
+            onClick={() => { const t = today(); setStartDate(t); setEndDate(t); }}
             className="h-9 px-3 rounded border border-slate-300 bg-white text-slate-700 text-xs font-semibold"
           >
             오늘
           </button>
+          <button
+            onClick={() => {
+              const end = new Date();
+              const start = new Date();
+              start.setDate(end.getDate() - 6);
+              setStartDate(start.toISOString().slice(0, 10));
+              setEndDate(end.toISOString().slice(0, 10));
+            }}
+            className="h-9 px-3 rounded border border-slate-300 bg-white text-slate-700 text-xs font-semibold"
+          >
+            최근 7일
+          </button>
           <div className="relative">
             <Search size={14} className="absolute left-2.5 top-1/2 -translate-y-1/2 text-slate-400" />
             <input
diff --git a/src/app/api/m/admin/daily-order-inventory/route.ts b/src/app/api/m/admin/daily-order-inventory/route.ts
index aba5216..343ad68 100644
--- a/src/app/api/m/admin/daily-order-inventory/route.ts
+++ b/src/app/api/m/admin/daily-order-inventory/route.ts
@@ -10,11 +10,14 @@ export async function POST(req: NextRequest) {
   if (g instanceof NextResponse) return g;
 
   const body = await req.json().catch(() => ({}));
-  const targetDate = (body.targetDate as string) || ""; // YYYY-MM-DD, 비우면 오늘
+  // 신/구 호환: startDate/endDate 우선, 없으면 targetDate(단일)로 같은 날짜 사용
+  const today = new Date().toISOString().slice(0, 10);
+  const targetDate = (body.targetDate as string) || "";
+  let startDate = (body.startDate as string) || targetDate || today;
+  let endDate = (body.endDate as string) || targetDate || today;
+  if (startDate > endDate) [startDate, endDate] = [endDate, startDate];
   const keyword = (body.keyword as string) || "";
 
-  const date = targetDate || new Date().toISOString().slice(0, 10);
-
   // 1) 활성 창고
   const warehouses = await queryRows<{ OBJID: string; WH_CODE: string; WH_NAME: string }>(
     `SELECT objid AS "OBJID", wh_code AS "WH_CODE", wh_name AS "WH_NAME"
@@ -23,18 +26,19 @@ export async function POST(req: NextRequest) {
       ORDER BY wh_code`
   );
 
-  // 2) 선택일에 판매가능한 품목
+  // 2) 기간 내에 한 번이라도 판매가능했던 품목
+  //    품목 판매기간 [sale_start_date, sale_end_date] 과 조회 기간 [startDate, endDate] 이 겹치면 포함
   const itemConds: string[] = [
     "COALESCE(I.is_del, 'N') != 'Y'",
     "COALESCE(I.is_hidden, 'N') != 'Y'",
     "UPPER(COALESCE(I.status, '')) = 'ACTIVE'",
-    `(I.sale_start_date IS NULL OR $1::date >= I.sale_start_date::date)`,
-    `(I.sale_end_date   IS NULL OR $1::date <= I.sale_end_date::date)`,
+    `(I.sale_start_date IS NULL OR I.sale_start_date::date <= $2::date)`,
+    `(I.sale_end_date   IS NULL OR I.sale_end_date::date   >= $1::date)`,
   ];
-  const params: unknown[] = [date];
+  const params: unknown[] = [startDate, endDate];
   if (keyword) {
     params.push(keyword);
-    itemConds.push(`(I.item_name ILIKE '%' || $2 || '%' OR I.item_code ILIKE '%' || $2 || '%')`);
+    itemConds.push(`(I.item_name ILIKE '%' || $3 || '%' OR I.item_code ILIKE '%' || $3 || '%')`);
   }
 
   const items = await queryRows<{
@@ -89,12 +93,12 @@ export async function POST(req: NextRequest) {
       WHERE SM.ref_type = 'ORDER'
         AND SM.move_type = 'OUT'
         AND COALESCE(W.is_del,'N') != 'Y'
-        AND O.order_date = $1::date
+        AND O.order_date BETWEEN $1::date AND $2::date
         AND O.status IN ('APPROVED','INVOICED','PAID')
         AND COALESCE(O.is_del,'N') != 'Y'
-        AND SM.item_objid IN (${items.map((_, i) => `$${i + 2}`).join(",")})
+        AND SM.item_objid IN (${items.map((_, i) => `$${i + 3}`).join(",")})
       GROUP BY SM.item_objid, W.wh_code`,
-    [date, ...items.map((it) => it.OBJID)]
+    [startDate, endDate, ...items.map((it) => it.OBJID)]
   );
 
   // REQUESTED 상태(아직 출고 전) 발주는 거래처 default 창고로 배정 (fallback: WH001)
@@ -109,10 +113,10 @@ export async function POST(req: NextRequest) {
       WHERE COALESCE(OI.kind, 'ITEM') = 'ITEM'
         AND COALESCE(O.is_del, 'N') != 'Y'
         AND O.status = 'REQUESTED'
-        AND O.order_date = $1::date
-        AND OI.item_objid IN (${items.map((_, i) => `$${i + 2}`).join(",")})
+        AND O.order_date BETWEEN $1::date AND $2::date
+        AND OI.item_objid IN (${items.map((_, i) => `$${i + 3}`).join(",")})
       GROUP BY OI.item_objid, W.wh_code`,
-    [date, ...items.map((it) => it.OBJID)]
+    [startDate, endDate, ...items.map((it) => it.OBJID)]
   );
 
   // 매트릭스 조립 — 각 품목별 STOCK / ORDER 객체 (wh_code → qty)