diff --git a/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinViewer.tsx b/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinViewer.tsx
index 3e7b5471..ae98c795 100644
--- a/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinViewer.tsx
+++ b/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinViewer.tsx
@@ -51,6 +51,7 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
   const [isExternalMode, setIsExternalMode] = useState(false);
   const [isFullscreen, setIsFullscreen] = useState(false);
   const [layoutKey, setLayoutKey] = useState(0); // 레이아웃 강제 리렌더링용
+  const [lastRefreshedAt, setLastRefreshedAt] = useState<Date | null>(null); // 마지막 갱신 시간
   const canvasContainerRef = useRef<HTMLDivElement>(null);
 
   // 외부 업체 역할 체크
@@ -214,6 +215,8 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
             }),
           );
         }
+        // 마지막 갱신 시간 기록
+        setLastRefreshedAt(new Date());
       } else {
         throw new Error(response.error || "레이아웃 조회 실패");
       }
@@ -250,6 +253,155 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [layoutId]);
 
+  // 10초 주기 자동 갱신 (중앙 관제 화면 자동 새로고침)
+  useEffect(() => {
+    const AUTO_REFRESH_INTERVAL = 10000; // 10초
+
+    const silentRefresh = async () => {
+      // 로딩 중이거나 새로고침 중이면 스킵
+      if (isLoading || isRefreshing) return;
+
+      try {
+        // 레이아웃 데이터 조용히 갱신
+        const response = await getLayoutById(layoutId);
+
+        if (response.success && response.data) {
+          const { layout, objects } = response.data;
+          const dbConnectionId = layout.external_db_connection_id || layout.externalDbConnectionId;
+
+          // hierarchy_config 파싱
+          let hierarchyConfigData: any = null;
+          if (layout.hierarchy_config) {
+            hierarchyConfigData =
+              typeof layout.hierarchy_config === "string"
+                ? JSON.parse(layout.hierarchy_config)
+                : layout.hierarchy_config;
+            setHierarchyConfig(hierarchyConfigData);
+          }
+
+          // 객체 데이터 변환
+          const loadedObjects: PlacedObject[] = objects.map((obj: any) => {
+            const objectType = obj.object_type;
+            return {
+              id: obj.id,
+              type: objectType,
+              name: obj.object_name,
+              position: {
+                x: parseFloat(obj.position_x),
+                y: parseFloat(obj.position_y),
+                z: parseFloat(obj.position_z),
+              },
+              size: {
+                x: parseFloat(obj.size_x),
+                y: parseFloat(obj.size_y),
+                z: parseFloat(obj.size_z),
+              },
+              rotation: obj.rotation ? parseFloat(obj.rotation) : 0,
+              color: getObjectColor(objectType, obj.color),
+              areaKey: obj.area_key,
+              locaKey: obj.loca_key,
+              locType: obj.loc_type,
+              materialCount: obj.loc_type === "STP" ? undefined : obj.material_count,
+              materialPreview:
+                obj.loc_type === "STP" || !obj.material_preview_height
+                  ? undefined
+                  : { height: parseFloat(obj.material_preview_height) },
+              parentId: obj.parent_id,
+              displayOrder: obj.display_order,
+              locked: obj.locked,
+              visible: obj.visible !== false,
+              hierarchyLevel: obj.hierarchy_level,
+              parentKey: obj.parent_key,
+              externalKey: obj.external_key,
+            };
+          });
+
+          // 외부 DB 연결이 있고 자재 설정이 있으면, 각 Location의 실제 자재 개수 조회
+          if (dbConnectionId && hierarchyConfigData?.material) {
+            const locationObjects = loadedObjects.filter(
+              (obj) =>
+                (obj.type === "location-bed" || obj.type === "location-temp" || obj.type === "location-dest") &&
+                obj.locaKey,
+            );
+
+            // 각 Location에 대해 자재 개수 조회 (병렬 처리)
+            const materialCountPromises = locationObjects.map(async (obj) => {
+              try {
+                const matResponse = await getMaterials(dbConnectionId, {
+                  tableName: hierarchyConfigData.material.tableName,
+                  keyColumn: hierarchyConfigData.material.keyColumn,
+                  locationKeyColumn: hierarchyConfigData.material.locationKeyColumn,
+                  layerColumn: hierarchyConfigData.material.layerColumn,
+                  locaKey: obj.locaKey!,
+                });
+                if (matResponse.success && matResponse.data) {
+                  return { id: obj.id, count: matResponse.data.length };
+                }
+              } catch {
+                // 자동 갱신 시에는 에러 로그 생략
+              }
+              return { id: obj.id, count: 0 };
+            });
+
+            const materialCounts = await Promise.all(materialCountPromises);
+
+            // materialCount 업데이트
+            const updatedObjects = loadedObjects.map((obj) => {
+              const countData = materialCounts.find((m) => m.id === obj.id);
+              if (countData && countData.count > 0) {
+                return { ...obj, materialCount: countData.count };
+              }
+              return obj;
+            });
+
+            setPlacedObjects(updatedObjects);
+          } else {
+            setPlacedObjects(loadedObjects);
+          }
+
+          // 선택된 객체가 있으면 자재 목록도 갱신
+          if (selectedObject && dbConnectionId && hierarchyConfigData?.material) {
+            const currentObj = loadedObjects.find((o) => o.id === selectedObject.id);
+            if (
+              currentObj &&
+              (currentObj.type === "location-bed" ||
+                currentObj.type === "location-temp" ||
+                currentObj.type === "location-dest") &&
+              currentObj.locaKey
+            ) {
+              const matResponse = await getMaterials(dbConnectionId, {
+                tableName: hierarchyConfigData.material.tableName,
+                keyColumn: hierarchyConfigData.material.keyColumn,
+                locationKeyColumn: hierarchyConfigData.material.locationKeyColumn,
+                layerColumn: hierarchyConfigData.material.layerColumn,
+                locaKey: currentObj.locaKey,
+              });
+              if (matResponse.success && matResponse.data) {
+                const layerColumn = hierarchyConfigData.material.layerColumn || "LOLAYER";
+                const sortedMaterials = matResponse.data.sort(
+                  (a: any, b: any) => (b[layerColumn] || 0) - (a[layerColumn] || 0),
+                );
+                setMaterials(sortedMaterials);
+              }
+            }
+          }
+
+          // 마지막 갱신 시간 기록
+          setLastRefreshedAt(new Date());
+        }
+      } catch {
+        // 자동 갱신 실패 시 조용히 무시 (사용자 경험 방해 안 함)
+      }
+    };
+
+    // 10초마다 자동 갱신
+    const intervalId = setInterval(silentRefresh, AUTO_REFRESH_INTERVAL);
+
+    // 컴포넌트 언마운트 시 인터벌 정리
+    return () => clearInterval(intervalId);
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [layoutId, isLoading, isRefreshing, selectedObject]);
+
   // Location의 자재 목록 로드
   const loadMaterialsForLocation = async (locaKey: string, externalDbConnectionId: number) => {
     if (!hierarchyConfig?.material) {
@@ -405,7 +557,14 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
       <div className="flex items-center justify-between border-b p-4">
         <div>
           <h2 className="text-lg font-semibold">{layoutName || "디지털 트윈 야드"}</h2>
-          <p className="text-muted-foreground text-sm">{isExternalMode ? "야드 관제 화면" : "읽기 전용 뷰"}</p>
+          <div className="flex items-center gap-3">
+            <p className="text-muted-foreground text-sm">{isExternalMode ? "야드 관제 화면" : "읽기 전용 뷰"}</p>
+            {lastRefreshedAt && (
+              <span className="text-muted-foreground text-xs">
+                마지막 갱신: {lastRefreshedAt.toLocaleTimeString("ko-KR")}
+              </span>
+            )}
+          </div>
         </div>
         <div className="flex items-center gap-2">
           {/* 전체 화면 버튼 - 외부 업체 모드에서만 표시 */}