diff --git a/apps/sn/app/(map-layout)/map/SearchModal.tsx b/apps/sn/app/(map-layout)/map/SearchModal.tsx
index 28c93bafa..a666b2b6c 100644
--- a/apps/sn/app/(map-layout)/map/SearchModal.tsx
+++ b/apps/sn/app/(map-layout)/map/SearchModal.tsx
@@ -11,7 +11,7 @@ import { SidoSigunguSelectBox } from '@/components/ui/SidoSigunguSelectBox';
 import { MsSwagePplCol2, SwtrmtFcltCol2, SwtrmtPrcsZoneCol2, MsSwageMhlCol2, SewagePump2, stofcbrCol2 } from './components/common/table';
 import LoadingOverlay from '@/components/ui/LoadingBar';
 import { GovSidoSigunguSearchForm } from '@/components/ui/govSidoSigunguSearchForm';
-import { useDcTree } from './components/searchModalReportApi';
+import { getDcTree, buildTreeTopDown, sidoList } from './components/searchModalReportApi';
 
 const API_URL = `${process.env.NEXT_PUBLIC_SEWERAGE_API_URL}`;
 
@@ -53,11 +53,10 @@ const operationTableHeadlist = [
 // 하수도정비 기본계획 보고서
 const reportTableHeadlist = [
   { id: "no", title: "NO" },
-  { id: "approvalYear", title: "승인년도" },
   { id: "sido", title: "시도" },
   { id: "sigungu", title: "시군구" },
-  { id: "treatmentPlant", title: "하수처리장" },
-  { id: "treatmentZone", title: "하수처리구역" },
+  { id: "approvalYear", title: "승인년도" },
+  { id: "treatmentPlantZone", title: "처리장,구역" },
   { id: "reportCount", title: "보고서(00건)" },
   { id: "planMapCount", title: "하수도대장 평면도(00건)" },
   { id: "regDate", title: "등록일자" },
@@ -201,6 +200,7 @@ const SearchModal: React.FC<SearchModalProps> = ({
     }
   }, [curPage]);
 
+  
   // 검색 API 호출 함수
   const fetchFilteredData = async () => {
     setIsLoading(true); // 로딩 시작
@@ -229,10 +229,11 @@ const SearchModal: React.FC<SearchModalProps> = ({
       if (cqlFilters.length > 0) queryParams.append('cqlFiter', cqlFilters.join(' and '));
 
       if (activeTab === 'report') {
-        const data = flattenFolders(dcData);
-        console.log('dcTree:', data);
-        setTableData(data || []);
-        setTableCount(data.length || []);
+        const reportOriginData = await getDcTree('경기도');
+        const reportData = buildTreeTopDown(reportOriginData, '경기도');
+        console.log('dcTree:', reportData);
+        setTableData(reportData || []);
+        setTableCount(reportData.length || 0);
       } else {
         console.log('API URL:', `${API_URL}/v1/fclts?${queryParams.toString()}`);
         const res = await axios.get(`${API_URL}/v1/fclts?${queryParams.toString()}`);
diff --git a/apps/sn/app/(map-layout)/map/components/searchModalReportApi.ts b/apps/sn/app/(map-layout)/map/components/searchModalReportApi.ts
index 304cdee95..e78ff2def 100644
--- a/apps/sn/app/(map-layout)/map/components/searchModalReportApi.ts
+++ b/apps/sn/app/(map-layout)/map/components/searchModalReportApi.ts
@@ -1,26 +1,45 @@
 import {useState, useEffect} from 'react';
 import { getDcData } from '@/components/lib/api';
-import moment from "moment";
 
 const ADDR_URL = process.env.NEXT_PUBLIC_ADDR_URL;
-export type SelectDataType = {
-  val: string;
-  text: string;
-  sido?: string; // 시도 코드
-};
+type Node = {
+  clsfSystmSn: string;
+  upClsfSystmSn: string;
+  clsfSystmNm: string;
+  sortSeq: string;
+  droppAble: boolean;
+}
 
-type Folder = {
-  fldrSn: string;
-  upFldrSn: string;
-  fldrNm: string;
-  sort_seq: number;
-  children: Folder[];
-};
+type OutputNode = {
+  sido: string;   
+  sigungu: string;
+  approvalYear: string;
+  level4: string;
+  treatmentPlantZone: string;
+  level6: string;
+  level6_clsfSystmSn: string;
+  no? : number;
+}
 
-type FlattenedFolder = {
-  [key: string]: string;
-};
+type SelectDataType = {
+    text: string;
+    val: string;
+    sigungu?: string; // 시도 코드 (선택 사항)
+}
 
+export const sidoList: { id: number, name: string }[] = [
+  { id: 0, name: '전체' },
+  { id: 26, name: '부산광역시' },
+  { id: 28, name: '인천광역시' },
+  { id: 30, name: '대전광역시' },
+  { id: 41, name: '경기도' },
+  { id: 42, name: '강원도' },
+  { id: 44, name: '충청남도' },
+  { id: 45, name: '전라북도' },
+  { id: 46, name: '전라남도' },
+  { id: 47, name: '경상북도' },
+  { id: 48, name: '경상남도' },
+];
 // 시군구 데이터
 const getSggCd = async (): Promise<SelectDataType[]> => {
   try {
@@ -30,14 +49,14 @@ const getSggCd = async (): Promise<SelectDataType[]> => {
     const sgg = res.data;
     const sggCd = sgg.map((item: any) => ({
         val: item.adstDstrCd,
-        sido: item.sido,
+        sigungu: item.sigungu,
         text: item.gugun,
     }));
     sggCd.unshift({ val: '0', text: '전체' }); // "전체" 옵션 추가
     return sggCd;
   } catch (error) {
     console.error('시군구 데이터를 가져오는데 실패했습니다:', error);
-    return [{ val: '0', text: '전체', sido: '0'  }];
+    return [{ val: '0', text: '전체', sigungu: '0'  }];
   }
 };
 
@@ -61,61 +80,63 @@ const isYear = (value: string): boolean => {
   return /^[0-9]{4}년$/.test(value);
 };
 
-function flattenFolders(data: Folder[]): FlattenedFolder[] {
-  const result: FlattenedFolder[] = [];
-  const sggCd = await getSggCd();
-  function traverse(
-    node: Folder,
-    path: { [key: string]: string },
-    level: number
-  ) {
-    if (level === 2) {
-		  if (!sggCd.some(item => item.text === node.fldrNm)) {
-			}
-			if (isYear(node.fldrNm)) {
-				level++;	
-			}
-    }
-    const newPath = {
-      ...path,
-      //[`level${level}_fldrSn`]: node.fldrSn,
-      [`level${level}`]: node.fldrNm,
-    };
+export function buildTreeTopDown(treeData: Node[], topNodeNm : string): OutputNode[] {
+  const level6Names = ["보고서", "요약보고서", "부록", "기타"];
+  const childrenMap = new Map<string, Node[]>();
 
-    if (node.children.length === 0) {
-      result.push(newPath);
-    } else {
-      node.children.forEach((child) => {
-        traverse(child, newPath, level + 1);
-      });
+  // 1. 부모 → 자식 연결 테이블 구성
+  treeData.forEach((node) => {
+    if (!childrenMap.has(node.upClsfSystmSn)) {
+      childrenMap.set(node.upClsfSystmSn, []);
     }
+    childrenMap.get(node.upClsfSystmSn)!.push(node);
+  });
+  const result: OutputNode[] = [];
+
+  // 2. Top-down recursive 탐색 함수
+  function traverse(path: string[], currentSn: string) {
+    const children = childrenMap.get(currentSn) || [];
+
+    for (const child of children) {
+      const newPath = [...path, child.clsfSystmNm];
+      if (level6Names.includes(child.clsfSystmNm)) {
+        const sido = newPath[0] || "";
+        let [sigungu="", approvalYear="", level4="", treatmentPlantZone = ""] = newPath.slice(1, 5);
+        if (isYear(sigungu)) {
+          treatmentPlantZone = level4; level4 = approvalYear; approvalYear = sigungu; sigungu = "";
+        }
+        if (level6Names.includes(treatmentPlantZone)) treatmentPlantZone = ""; 
+        result.push({
+          sido,  
+          sigungu,
+          approvalYear,
+          level4,
+          treatmentPlantZone,
+          level6: child.clsfSystmNm,
+          level6_clsfSystmSn: child.clsfSystmSn,
+        });
+      } else {
+        traverse(newPath, child.clsfSystmSn);
+      }
+    } // for
   }
 
-  data.forEach((root) => traverse(root, {}, 0));
+  // 3. topNodeNm에서 시작
+  const topNode = treeData.find((n) => n.clsfSystmNm === topNodeNm);
+  if (topNode) {
+    traverse([topNode.clsfSystmNm], topNode.clsfSystmSn);
+  }
+  const numberedResult = result.map((item, index) => ({
+		...item,
+		no: index + 1,
+	}));
 
-  return result;
+  return numberedResult;
 }
 
-export const useDcTree = () => {
-  const [data, setData] = useState<FlattenedFolder[]>([]);
-
-  useEffect(() => {
-    const fetch = async () => {
-      const result = await getDcData(`/api/v1/dc/tree`);
-      if (result) {
-        const flattenedData = flattenFolders(result);
-        setData(flattenedData);
-      }
-    };
-    fetch();
-  }, []);
-
-  return data;
-};
-
-export const getDcTree = async () => {
-  const queryString = '';
-  const result = await getDcData(`/api/v1/dc/tree${queryString ? `?${queryString}` : ''}`);
+export const getDcTree = async (clsfSystmNm:string) => {
+  const queryString = 'clsfSystmNm='+clsfSystmNm;
+  const result = await getDcData(`/api/v1/dc/clsf${queryString ? `?${queryString}` : ''}`);
   return result;
 };