diff --git a/apps/sn/app/(map-layout)/map/components/common/index.ts b/apps/sn/app/(map-layout)/map/components/common/index.ts
index 2581ac0fa..d2aed5956 100644
--- a/apps/sn/app/(map-layout)/map/components/common/index.ts
+++ b/apps/sn/app/(map-layout)/map/components/common/index.ts
@@ -1,5 +1,5 @@
-import MsSwagePpl from "../popupComponent/MsSwagePpl";
-import sewagePump from "../popupComponent/sewagePump";
+import MsSwagePpl from "../popupComponent/MsSwagePpl"; // 하수관로
+import sewagePump from "../popupComponent/sewagePump"; // 하수펌프
 import smh from "../popupComponent/smh";
 import Ssc from "../popupComponent/Ssc";
 import StormWaterPump from "../popupComponent/stormWaterPump";
diff --git a/apps/sn/app/(map-layout)/map/components/popupComponent/featureClickEventPopup.tsx b/apps/sn/app/(map-layout)/map/components/popupComponent/featureClickEventPopup.tsx
index 031c69d8a..8d600ea86 100644
--- a/apps/sn/app/(map-layout)/map/components/popupComponent/featureClickEventPopup.tsx
+++ b/apps/sn/app/(map-layout)/map/components/popupComponent/featureClickEventPopup.tsx
@@ -28,6 +28,10 @@ import { VerticalTable } from "@/components/ui/verticalTable";
 import { useGisContext } from "@common/business_components/ui/map/Gis";
 import { Button } from "@common/components/ui";
 import { useEffect, useRef, useState, useMemo } from "react";
+import Style from "ol/style/Style.js";
+import Fill from "ol/style/Fill.js";
+import Stroke from "ol/style/Stroke.js";
+import CircleStyle from "ol/style/Circle.js";
 import { getLayerContentComponent } from "../common";
 import { SwtrmtFcltCol, SwtrmtFcltCol2, SwtrmtPrcsZoneCol, SwtrmtPrcsZoneCol2, untrtSwgRainCol1, untrtSwgRainCol2, MsSwagePplCol, MsSwagePplCol2, ExclnSewagePumpCol, ExclnSewagePumpCol2, DrtwSewagePumpCol, DrtwSewagePumpCol2, MsSwageMhlCol, MsSwageMhlCol2, stofcbrCol, stofcbrCol2, MS_SWAGE_MHL_CODES, DRTW_SEWAGE_PUMP_USE_CODES } from "../common/table";
 import InfilChart from './chart/infilChart';
@@ -38,6 +42,27 @@ import { codeMapper } from "../common/codeMapper";
 import LoadingOverlay from '@/components/ui/LoadingBar';
 import { searchUpperPpls } from "./smh";
 
+const linkedFacilityHighlightStyle = new Style({
+  image: new CircleStyle({
+    radius: 18,
+    fill: new Fill({
+      color: 'rgba(255, 235, 59, 0.35)',
+    }),
+    stroke: new Stroke({
+      color: 'rgba(255, 193, 7, 0.95)',
+      width: 4,
+    }),
+  }),
+  fill: new Fill({
+    color: 'rgba(255, 235, 59, 0.2)',
+  }),
+  stroke: new Stroke({
+    color: 'rgba(255, 193, 7, 0.95)',
+    width: 5,
+  }),
+  zIndex: 9999,
+});
+
 
 const FeatureClickEventPopup = ({ onClose, featureData }: { onClose: () => void, featureData: any }) => {
   const { gisMap } = useGisContext() as unknown as { checkedLayerIds: React.MutableRefObject<number[]>; treeData: { lyrSn: number }[] | null; gisCore: any; gisMap: any; };
@@ -59,6 +84,8 @@ const FeatureClickEventPopup = ({ onClose, featureData }: { onClose: () => void,
   const [isLoading, setIsLoading] = useState(false); // 로딩 상태
   const [chmbrXcnts, setChmbrXcnts] = useState<string>(''); // 로딩 상태
   const [chmbrYdnts, setChmbrYdnts] = useState<string>(''); // 로딩 상태
+  const linkedFacilityFeatureRef = useRef<any>(null);
+  const linkedFacilityOriginalStyleRef = useRef<any>(null);
 
   // 🎯 관로관리번호 추출
   const pplMngNo = featureData?.values_?.fclt_mng_no || "";
@@ -77,6 +104,70 @@ const FeatureClickEventPopup = ({ onClose, featureData }: { onClose: () => void,
     };
   }, [featureData?.values_]);
 
+  const clearLinkedFacilityHighlight = () => {
+    if (linkedFacilityFeatureRef.current) {
+      linkedFacilityFeatureRef.current.setStyle(linkedFacilityOriginalStyleRef.current ?? undefined);
+      linkedFacilityFeatureRef.current.changed?.();
+    }
+
+    linkedFacilityFeatureRef.current = null;
+    linkedFacilityOriginalStyleRef.current = null;
+  };
+
+  // 하수처리구역에 연결된 하수처리시설 피처를 찾아 기존 아이콘 위에 노랑 하이라이트를 덧씌운다.
+  const highlightLinkedFacility = (facilityCode: string | null | undefined) => {
+    clearLinkedFacilityHighlight();
+
+    if (!gisMap || !facilityCode) return;
+
+    const normalizedFacilityCode = String(facilityCode).trim();
+    const layers = gisMap.getLayers().getArray();
+
+    for (const layer of layers) {
+      const source = layer?.getSource?.();
+      if (!source?.getFeatures) continue;
+
+      const features = source.getFeatures();
+      const targetFeature = features.find((feature: any) => {
+        const featureId = feature?.getId?.();
+        const isFacilityLayer = typeof featureId === 'string' && featureId.startsWith('tb_il_swage_prcs_fclt.');
+        const featureFacilityCode = feature?.get?.('swtrmt_fclt_cd');
+
+        return isFacilityLayer && String(featureFacilityCode ?? '').trim() === normalizedFacilityCode;
+      });
+
+      if (targetFeature) {
+        const originalFeatureStyle = targetFeature.getStyle?.();
+        const featureLayer = targetFeature.getLayer?.();
+        const layerStyleFn = featureLayer?.getStyleFunction?.() ?? null;
+
+        linkedFacilityOriginalStyleRef.current = originalFeatureStyle;
+        linkedFacilityFeatureRef.current = targetFeature;
+        targetFeature.setStyle((feature: any, resolution: number) => {
+          let styles: any[] = [];
+
+          if (typeof originalFeatureStyle === 'function') {
+            const originalStyles = originalFeatureStyle(feature, resolution);
+            if (Array.isArray(originalStyles)) styles.push(...originalStyles);
+            else if (originalStyles) styles.push(originalStyles);
+          } else if (originalFeatureStyle) {
+            if (Array.isArray(originalFeatureStyle)) styles.push(...originalFeatureStyle);
+            else styles.push(originalFeatureStyle);
+          } else if (layerStyleFn) {
+            const layerStyles = layerStyleFn(feature, resolution);
+            if (Array.isArray(layerStyles)) styles.push(...layerStyles);
+            else if (layerStyles) styles.push(layerStyles);
+          }
+
+          styles.push(linkedFacilityHighlightStyle);
+          return styles;
+        });
+        targetFeature.changed?.();
+        return;
+      }
+    }
+  };
+
   // 피쳐데이터의 현재 레이어 이름 가져오는 함수
   const getSelectedLayers = () => {
     let result = null;
@@ -348,6 +439,26 @@ const FeatureClickEventPopup = ({ onClose, featureData }: { onClose: () => void,
     fetchData();
   }, [featureId, processedData]);
 
+  useEffect(() => {
+    const layerTypeNm = featureData?.values_
+      ? featureData?.id_?.split('.')?.[0]
+      : featureData?.lyrTypeNm;
+
+    if (layerTypeNm === 'tb_ms_swage_prcs_zone') {
+      const facilityCode = featureData?.values_?.swtrmt_fclt_cd ?? featureData?.swtrmtFcltCd;
+      highlightLinkedFacility(facilityCode);
+      return () => {
+        clearLinkedFacilityHighlight();
+      };
+    }
+
+    clearLinkedFacilityHighlight();
+
+    return () => {
+      clearLinkedFacilityHighlight();
+    };
+  }, [featureData, gisMap]);
+
   // 저장 시 모달 띄우기
   const handleSaveClick = () => {
     setIsModalOpen(true); // 모달 열기
@@ -525,4 +636,4 @@ const FeatureClickEventPopup = ({ onClose, featureData }: { onClose: () => void,
     </div>
   )
 }
-export default FeatureClickEventPopup;
\ No newline at end of file
+export default FeatureClickEventPopup;