diff --git a/backend-node/src/controllers/screenGroupController.ts b/backend-node/src/controllers/screenGroupController.ts
index b984b7c1..f0809386 100644
--- a/backend-node/src/controllers/screenGroupController.ts
+++ b/backend-node/src/controllers/screenGroupController.ts
@@ -132,17 +132,37 @@ export const getScreenGroup = async (req: Request, res: Response) => {
 // 화면 그룹 생성
 export const createScreenGroup = async (req: Request, res: Response) => {
   try {
-    const companyCode = (req.user as any).companyCode;
+    const userCompanyCode = (req.user as any).companyCode;
     const userId = (req.user as any).userId;
-    const { group_name, group_code, main_table_name, description, icon, display_order, is_active } = req.body;
+    const { group_name, group_code, main_table_name, description, icon, display_order, is_active, parent_group_id, target_company_code } = req.body;
 
     if (!group_name || !group_code) {
       return res.status(400).json({ success: false, message: "그룹명과 그룹코드는 필수입니다." });
     }
 
+    // 회사 코드 결정: 최고 관리자가 특정 회사를 선택한 경우 해당 회사로, 아니면 사용자 회사
+    let finalCompanyCode = userCompanyCode;
+    if (userCompanyCode === "*" && target_company_code) {
+      // 최고 관리자가 특정 회사를 선택한 경우
+      finalCompanyCode = target_company_code;
+    }
+
+    // 부모 그룹이 있으면 group_level과 hierarchy_path 계산
+    let groupLevel = 0;
+    let parentHierarchyPath = "";
+    
+    if (parent_group_id) {
+      const parentQuery = `SELECT id, group_level, hierarchy_path FROM screen_groups WHERE id = $1`;
+      const parentResult = await pool.query(parentQuery, [parent_group_id]);
+      if (parentResult.rows.length > 0) {
+        groupLevel = (parentResult.rows[0].group_level || 0) + 1;
+        parentHierarchyPath = parentResult.rows[0].hierarchy_path || `/${parent_group_id}/`;
+      }
+    }
+
     const query = `
-      INSERT INTO screen_groups (group_name, group_code, main_table_name, description, icon, display_order, is_active, company_code, writer)
-      VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)
+      INSERT INTO screen_groups (group_name, group_code, main_table_name, description, icon, display_order, is_active, company_code, writer, parent_group_id, group_level)
+      VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)
       RETURNING *
     `;
     const params = [
@@ -153,15 +173,27 @@ export const createScreenGroup = async (req: Request, res: Response) => {
       icon || null,
       display_order || 0,
       is_active || 'Y',
-      companyCode === "*" ? "*" : companyCode,
-      userId
+      finalCompanyCode,
+      userId,
+      parent_group_id || null,
+      groupLevel
     ];
 
     const result = await pool.query(query, params);
+    const newGroupId = result.rows[0].id;
 
-    logger.info("화면 그룹 생성", { companyCode, groupId: result.rows[0].id, groupName: group_name });
+    // hierarchy_path 업데이트
+    const hierarchyPath = parent_group_id 
+      ? `${parentHierarchyPath}${newGroupId}/`.replace('//', '/')
+      : `/${newGroupId}/`;
+    await pool.query(`UPDATE screen_groups SET hierarchy_path = $1 WHERE id = $2`, [hierarchyPath, newGroupId]);
 
-    res.json({ success: true, data: result.rows[0], message: "화면 그룹이 생성되었습니다." });
+    // 업데이트된 데이터 반환
+    const updatedResult = await pool.query(`SELECT * FROM screen_groups WHERE id = $1`, [newGroupId]);
+
+    logger.info("화면 그룹 생성", { userCompanyCode, finalCompanyCode, groupId: newGroupId, groupName: group_name, parentGroupId: parent_group_id });
+
+    res.json({ success: true, data: updatedResult.rows[0], message: "화면 그룹이 생성되었습니다." });
   } catch (error: any) {
     logger.error("화면 그룹 생성 실패:", error);
     if (error.code === '23505') {
@@ -175,21 +207,72 @@ export const createScreenGroup = async (req: Request, res: Response) => {
 export const updateScreenGroup = async (req: Request, res: Response) => {
   try {
     const { id } = req.params;
-    const companyCode = (req.user as any).companyCode;
-    const { group_name, group_code, main_table_name, description, icon, display_order, is_active } = req.body;
+    const userCompanyCode = (req.user as any).companyCode;
+    const { group_name, group_code, main_table_name, description, icon, display_order, is_active, parent_group_id, target_company_code } = req.body;
 
-    let query = `
-      UPDATE screen_groups 
-      SET group_name = $1, group_code = $2, main_table_name = $3, description = $4, 
-          icon = $5, display_order = $6, is_active = $7, updated_date = NOW()
-      WHERE id = $8
-    `;
-    const params: any[] = [group_name, group_code, main_table_name, description, icon, display_order, is_active, id];
+    // 회사 코드 결정: 최고 관리자가 특정 회사를 선택한 경우 해당 회사로, 아니면 현재 그룹의 회사 유지
+    let finalCompanyCode = target_company_code || null;
 
-    // 멀티테넌시 필터링
-    if (companyCode !== "*") {
-      query += ` AND company_code = $9`;
-      params.push(companyCode);
+    // 부모 그룹이 변경되면 group_level과 hierarchy_path 재계산
+    let groupLevel = 0;
+    let hierarchyPath = `/${id}/`;
+    
+    if (parent_group_id !== undefined && parent_group_id !== null) {
+      // 자기 자신을 부모로 지정하는 것 방지
+      if (Number(parent_group_id) === Number(id)) {
+        return res.status(400).json({ success: false, message: "자기 자신을 상위 그룹으로 지정할 수 없습니다." });
+      }
+      
+      const parentQuery = `SELECT id, group_level, hierarchy_path FROM screen_groups WHERE id = $1`;
+      const parentResult = await pool.query(parentQuery, [parent_group_id]);
+      if (parentResult.rows.length > 0) {
+        // 순환 참조 방지: 부모의 hierarchy_path에 현재 그룹 ID가 포함되어 있으면 오류
+        if (parentResult.rows[0].hierarchy_path && parentResult.rows[0].hierarchy_path.includes(`/${id}/`)) {
+          return res.status(400).json({ success: false, message: "하위 그룹을 상위 그룹으로 지정할 수 없습니다." });
+        }
+        groupLevel = (parentResult.rows[0].group_level || 0) + 1;
+        const parentPath = parentResult.rows[0].hierarchy_path || `/${parent_group_id}/`;
+        hierarchyPath = `${parentPath}${id}/`.replace('//', '/');
+      }
+    }
+
+    // 쿼리 구성: 회사 코드 변경 포함 여부
+    let query: string;
+    let params: any[];
+    
+    if (userCompanyCode === "*" && finalCompanyCode) {
+      // 최고 관리자가 회사를 변경하는 경우
+      query = `
+        UPDATE screen_groups 
+        SET group_name = $1, group_code = $2, main_table_name = $3, description = $4, 
+            icon = $5, display_order = $6, is_active = $7, updated_date = NOW(),
+            parent_group_id = $8, group_level = $9, hierarchy_path = $10, company_code = $11
+        WHERE id = $12
+      `;
+      params = [
+        group_name, group_code, main_table_name, description, icon, display_order, is_active,
+        parent_group_id || null, groupLevel, hierarchyPath, finalCompanyCode, id
+      ];
+    } else {
+      // 회사 코드 변경 없음
+      query = `
+        UPDATE screen_groups 
+        SET group_name = $1, group_code = $2, main_table_name = $3, description = $4, 
+            icon = $5, display_order = $6, is_active = $7, updated_date = NOW(),
+            parent_group_id = $8, group_level = $9, hierarchy_path = $10
+        WHERE id = $11
+      `;
+      params = [
+        group_name, group_code, main_table_name, description, icon, display_order, is_active,
+        parent_group_id || null, groupLevel, hierarchyPath, id
+      ];
+    }
+
+    // 멀티테넌시 필터링 (최고 관리자가 아닌 경우)
+    if (userCompanyCode !== "*") {
+      const paramIndex = params.length + 1;
+      query += ` AND company_code = $${paramIndex}`;
+      params.push(userCompanyCode);
     }
 
     query += " RETURNING *";
@@ -200,7 +283,7 @@ export const updateScreenGroup = async (req: Request, res: Response) => {
       return res.status(404).json({ success: false, message: "화면 그룹을 찾을 수 없거나 권한이 없습니다." });
     }
 
-    logger.info("화면 그룹 수정", { companyCode, groupId: id });
+    logger.info("화면 그룹 수정", { userCompanyCode, groupId: id, parentGroupId: parent_group_id, targetCompanyCode: finalCompanyCode });
 
     res.json({ success: true, data: result.rows[0], message: "화면 그룹이 수정되었습니다." });
   } catch (error: any) {
@@ -904,6 +987,7 @@ export const getMultipleScreenLayoutSummary = async (req: Request, res: Response
 
     // 여러 화면의 컴포넌트 정보 (좌표 포함) 한번에 조회
     // componentType이 더 정확한 위젯 종류 (table-list, button-primary 등)
+    // 다양한 컴포넌트 타입에서 사용 컬럼 추출
     const query = `
       SELECT 
         screen_id,
@@ -914,7 +998,15 @@ export const getMultipleScreenLayoutSummary = async (req: Request, res: Response
         height,
         properties->>'componentType' as component_kind,
         properties->>'widgetType' as widget_type,
-        properties->>'label' as label
+        properties->>'label' as label,
+        COALESCE(
+          properties->'componentConfig'->>'bindField',
+          properties->>'bindField',
+          properties->'componentConfig'->>'field',
+          properties->>'field'
+        ) as bind_field,
+        -- componentConfig 전체 (JavaScript에서 다양한 패턴 파싱용)
+        properties->'componentConfig' as component_config
       FROM screen_layouts
       WHERE screen_id = ANY($1)
         AND component_type = 'component'
@@ -944,6 +1036,75 @@ export const getMultipleScreenLayoutSummary = async (req: Request, res: Response
       // componentKind가 더 정확한 타입 (table-list, button-primary, table-search-widget 등)
       const componentKind = row.component_kind || row.widget_type || 'text';
       const widgetType = row.widget_type || 'text';
+      const componentConfig = row.component_config || {};
+      
+      // 다양한 컴포넌트 타입에서 usedColumns, joinColumns 추출
+      let usedColumns: string[] = [];
+      let joinColumns: string[] = [];
+      
+      // 1. 기본 columns 배열에서 추출 (table-list 등)
+      if (Array.isArray(componentConfig.columns)) {
+        componentConfig.columns.forEach((col: any) => {
+          const colName = col.columnName || col.field || col.name;
+          if (colName && !usedColumns.includes(colName)) {
+            usedColumns.push(colName);
+          }
+          if (col.isEntityJoin === true && colName && !joinColumns.includes(colName)) {
+            joinColumns.push(colName);
+          }
+        });
+      }
+      
+      // 2. split-panel-layout의 leftPanel.columns, rightPanel.columns 추출
+      if (componentKind === 'split-panel-layout') {
+        if (componentConfig.leftPanel?.columns && Array.isArray(componentConfig.leftPanel.columns)) {
+          componentConfig.leftPanel.columns.forEach((col: any) => {
+            const colName = col.name || col.columnName || col.field;
+            if (colName && !usedColumns.includes(colName)) {
+              usedColumns.push(colName);
+            }
+          });
+        }
+        if (componentConfig.rightPanel?.columns && Array.isArray(componentConfig.rightPanel.columns)) {
+          componentConfig.rightPanel.columns.forEach((col: any) => {
+            const colName = col.name || col.columnName || col.field;
+            if (colName) {
+              // customer_mng.customer_name 같은 경우 조인 컬럼으로 처리
+              if (colName.includes('.')) {
+                if (!joinColumns.includes(colName)) {
+                  joinColumns.push(colName);
+                }
+              } else {
+                if (!usedColumns.includes(colName)) {
+                  usedColumns.push(colName);
+                }
+              }
+            }
+          });
+        }
+      }
+      
+      // 3. selected-items-detail-input의 additionalFields, displayColumns 추출
+      if (componentKind === 'selected-items-detail-input') {
+        if (componentConfig.additionalFields && Array.isArray(componentConfig.additionalFields)) {
+          componentConfig.additionalFields.forEach((field: any) => {
+            const fieldName = field.name || field.field;
+            if (fieldName && !usedColumns.includes(fieldName)) {
+              usedColumns.push(fieldName);
+            }
+          });
+        }
+        // displayColumns는 연관 테이블에서 가져오는 표시용 컬럼이므로
+        // 메인 테이블의 joinColumns가 아님 (parentDataMapping에서 별도 추출됨)
+        // 단, 참조용으로 usedColumns에는 추가 가능
+        if (componentConfig.displayColumns && Array.isArray(componentConfig.displayColumns)) {
+          componentConfig.displayColumns.forEach((col: any) => {
+            const colName = col.name || col.columnName || col.field;
+            // displayColumns는 연관 테이블 컬럼이므로 메인 테이블 usedColumns에 추가하지 않음
+            // 조인 컬럼은 parentDataMapping.targetField에서 추출됨
+          });
+        }
+      }
       
       if (summaryMap[screenId]) {
         summaryMap[screenId].widgetCounts[componentKind] = 
@@ -959,6 +1120,9 @@ export const getMultipleScreenLayoutSummary = async (req: Request, res: Response
           componentKind: componentKind, // 정확한 컴포넌트 종류
           widgetType: widgetType,
           label: row.label,
+          bindField: row.bind_field || null, // 바인딩된 컬럼명
+          usedColumns: usedColumns, // 이 컴포넌트에서 사용하는 컬럼 목록
+          joinColumns: joinColumns, // 이 컴포넌트에서 조인 컬럼 목록
         });
         
         // 캔버스 크기 계산 (최대 좌표 기준)
@@ -1009,9 +1173,21 @@ export const getScreenSubTables = async (req: Request, res: Response) => {
       return res.status(400).json({ success: false, message: "screenIds 배열이 필요합니다." });
     }
 
-    // 화면별 메인 테이블과 서브 테이블 관계 조회
-    // componentConfig에서 tableName, sourceTable 추출
-    const query = `
+    // 화면별 서브 테이블 그룹화
+    const screenSubTables: Record<number, {
+      screenId: number;
+      screenName: string;
+      mainTable: string;
+      subTables: Array<{
+        tableName: string;
+        componentType: string;
+        relationType: string; // 'join' | 'lookup' | 'source' | 'reference'
+        fieldMappings?: Array<{ sourceField: string; targetField: string; sourceDisplayName?: string; targetDisplayName?: string }>;
+      }>;
+    }> = {};
+
+    // 1. 기존 방식: componentConfig에서 tableName, sourceTable, fieldMappings 추출
+    const componentQuery = `
       SELECT DISTINCT
         sd.screen_id,
         sd.screen_name,
@@ -1021,7 +1197,9 @@ export const getScreenSubTables = async (req: Request, res: Response) => {
           sl.properties->'componentConfig'->>'sourceTable'
         ) as sub_table,
         sl.properties->>'componentType' as component_type,
-        sl.properties->'componentConfig'->>'targetTable' as target_table
+        sl.properties->'componentConfig'->>'targetTable' as target_table,
+        sl.properties->'componentConfig'->'fieldMappings' as field_mappings,
+        sl.properties->'componentConfig'->'columns' as columns_config
       FROM screen_definitions sd
       JOIN screen_layouts sl ON sd.screen_id = sl.screen_id
       WHERE sd.screen_id = ANY($1)
@@ -1032,21 +1210,50 @@ export const getScreenSubTables = async (req: Request, res: Response) => {
       ORDER BY sd.screen_id
     `;
 
-    const result = await pool.query(query, [screenIds]);
+    const componentResult = await pool.query(componentQuery, [screenIds]);
 
-    // 화면별 서브 테이블 그룹화
-    const screenSubTables: Record<number, {
-      screenId: number;
-      screenName: string;
-      mainTable: string;
-      subTables: Array<{
-        tableName: string;
-        componentType: string;
-        relationType: string; // 'join' | 'lookup' | 'source'
-      }>;
-    }> = {};
+    // fieldMappings의 한글 컬럼명을 조회하기 위한 테이블-컬럼 쌍 수집
+    const columnLabelLookups: Array<{ table: string; column: string }> = [];
+    componentResult.rows.forEach((row: any) => {
+      if (row.field_mappings && Array.isArray(row.field_mappings)) {
+        row.field_mappings.forEach((fm: any) => {
+          const mainTable = row.main_table;
+          const subTable = row.sub_table;
+          if (fm.sourceField && subTable) {
+            columnLabelLookups.push({ table: subTable, column: fm.sourceField });
+          }
+          if (fm.targetField && mainTable) {
+            columnLabelLookups.push({ table: mainTable, column: fm.targetField });
+          }
+        });
+      }
+    });
 
-    result.rows.forEach((row: any) => {
+    // 한글 컬럼명 조회
+    const columnLabelMap = new Map<string, string>(); // "table.column" -> "한글명"
+    if (columnLabelLookups.length > 0) {
+      const uniqueLookups = [...new Set(columnLabelLookups.map(l => `${l.table}|${l.column}`))];
+      const conditions = uniqueLookups.map((lookup, i) => {
+        const [table, column] = lookup.split('|');
+        return `(table_name = $${i * 2 + 1} AND column_name = $${i * 2 + 2})`;
+      });
+      const params = uniqueLookups.flatMap(lookup => lookup.split('|'));
+      
+      if (conditions.length > 0) {
+        const labelQuery = `
+          SELECT table_name, column_name, column_label
+          FROM column_labels
+          WHERE ${conditions.join(' OR ')}
+        `;
+        const labelResult = await pool.query(labelQuery, params);
+        labelResult.rows.forEach((row: any) => {
+          const key = `${row.table_name}.${row.column_name}`;
+          columnLabelMap.set(key, row.column_label || row.column_name);
+        });
+      }
+    }
+
+    componentResult.rows.forEach((row: any) => {
       const screenId = row.screen_id;
       const mainTable = row.main_table;
       const subTable = row.sub_table;
@@ -1082,15 +1289,442 @@ export const getScreenSubTables = async (req: Request, res: Response) => {
           relationType = 'join';
         }
 
+        // fieldMappings 파싱 (JSON 배열 또는 null)
+        let fieldMappings: Array<{ sourceField: string; targetField: string; sourceDisplayName?: string; targetDisplayName?: string }> | undefined;
+        
+        if (row.field_mappings && Array.isArray(row.field_mappings)) {
+          // 1. 직접 fieldMappings가 있는 경우
+          fieldMappings = row.field_mappings.map((fm: any) => {
+            const sourceField = fm.sourceField || fm.source_field || '';
+            const targetField = fm.targetField || fm.target_field || '';
+            
+            // 한글 컬럼명 조회 (sourceField는 서브테이블 컬럼, targetField는 메인테이블 컬럼)
+            const sourceKey = `${subTable}.${sourceField}`;
+            const targetKey = `${mainTable}.${targetField}`;
+            
+            return {
+              sourceField,
+              targetField,
+              // sourceField(서브테이블 컬럼)의 한글명
+              sourceDisplayName: columnLabelMap.get(sourceKey) || sourceField,
+              // targetField(메인테이블 컬럼)의 한글명
+              targetDisplayName: columnLabelMap.get(targetKey) || targetField,
+            };
+          }).filter((fm: any) => fm.sourceField || fm.targetField);
+        } else if (row.columns_config && Array.isArray(row.columns_config)) {
+          // 2. columns_config.mapping에서 추출 (item_info 같은 경우)
+          // mapping.type === 'source'인 경우: sourceField(서브테이블) → field(메인테이블)
+          fieldMappings = [];
+          row.columns_config.forEach((col: any) => {
+            if (col.mapping && col.mapping.type === 'source' && col.mapping.sourceField) {
+              fieldMappings!.push({
+                sourceField: col.field || '',                    // 메인 테이블 컬럼
+                targetField: col.mapping.sourceField || '',      // 서브 테이블 컬럼
+                sourceDisplayName: col.label || col.field || '', // 한글 라벨
+                targetDisplayName: col.mapping.sourceField || '', // 서브 테이블은 영문만
+              });
+            }
+          });
+          if (fieldMappings.length === 0) {
+            fieldMappings = undefined;
+          }
+        }
+
         screenSubTables[screenId].subTables.push({
           tableName: subTable,
           componentType: componentType,
           relationType: relationType,
+          fieldMappings: fieldMappings,
         });
       }
     });
 
-    logger.info("화면 서브 테이블 정보 조회", { screenIds, resultCount: Object.keys(screenSubTables).length });
+    // 2. 추가 방식: 화면에서 사용하는 컬럼 중 column_labels.reference_table이 설정된 경우
+    // 화면의 usedColumns/joinColumns에서 reference_table 조회
+    const referenceQuery = `
+      WITH screen_used_columns AS (
+        -- 화면별 사용 컬럼 추출 (componentConfig.columns에서)
+        SELECT 
+          sd.screen_id,
+          sd.screen_name,
+          sd.table_name as main_table,
+          jsonb_array_elements_text(
+            COALESCE(
+              sl.properties->'componentConfig'->'columns',
+              '[]'::jsonb
+            )
+          )::jsonb->>'columnName' as column_name
+        FROM screen_definitions sd
+        JOIN screen_layouts sl ON sd.screen_id = sl.screen_id
+        WHERE sd.screen_id = ANY($1)
+        AND sl.properties->'componentConfig'->'columns' IS NOT NULL
+        AND jsonb_array_length(sl.properties->'componentConfig'->'columns') > 0
+        
+        UNION
+        
+        -- bindField도 포함
+        SELECT 
+          sd.screen_id,
+          sd.screen_name,
+          sd.table_name as main_table,
+          COALESCE(
+            sl.properties->'componentConfig'->>'bindField',
+            sl.properties->>'bindField',
+            sl.properties->'componentConfig'->>'field',
+            sl.properties->>'field'
+          ) as column_name
+        FROM screen_definitions sd
+        JOIN screen_layouts sl ON sd.screen_id = sl.screen_id
+        WHERE sd.screen_id = ANY($1)
+        AND (
+          sl.properties->'componentConfig'->>'bindField' IS NOT NULL
+          OR sl.properties->>'bindField' IS NOT NULL
+          OR sl.properties->'componentConfig'->>'field' IS NOT NULL
+          OR sl.properties->>'field' IS NOT NULL
+        )
+      )
+      SELECT DISTINCT
+        suc.screen_id,
+        suc.screen_name,
+        suc.main_table,
+        suc.column_name,
+        cl.column_label as source_display_name,
+        cl.reference_table,
+        cl.reference_column,
+        ref_cl.column_label as target_display_name
+      FROM screen_used_columns suc
+      JOIN column_labels cl ON cl.table_name = suc.main_table AND cl.column_name = suc.column_name
+      LEFT JOIN column_labels ref_cl ON ref_cl.table_name = cl.reference_table AND ref_cl.column_name = cl.reference_column
+      WHERE cl.reference_table IS NOT NULL 
+        AND cl.reference_table != ''
+        AND cl.reference_table != suc.main_table
+      ORDER BY suc.screen_id
+    `;
+
+    const referenceResult = await pool.query(referenceQuery, [screenIds]);
+
+    logger.info("column_labels reference_table 조회 결과", { 
+      screenIds, 
+      referenceCount: referenceResult.rows.length,
+      references: referenceResult.rows.map((r: any) => ({
+        screenId: r.screen_id,
+        column: r.column_name,
+        refTable: r.reference_table
+      }))
+    });
+
+    referenceResult.rows.forEach((row: any) => {
+      const screenId = row.screen_id;
+      const mainTable = row.main_table;
+      const referenceTable = row.reference_table;
+
+      if (!referenceTable || referenceTable === mainTable) {
+        return;
+      }
+
+      if (!screenSubTables[screenId]) {
+        screenSubTables[screenId] = {
+          screenId,
+          screenName: row.screen_name,
+          mainTable: mainTable || '',
+          subTables: [],
+        };
+      }
+
+      // 중복 체크
+      const exists = screenSubTables[screenId].subTables.some(
+        (st) => st.tableName === referenceTable
+      );
+
+      if (!exists) {
+        screenSubTables[screenId].subTables.push({
+          tableName: referenceTable,
+          componentType: 'column_reference',
+          relationType: 'reference',
+          fieldMappings: [{
+            sourceField: row.column_name,
+            targetField: row.reference_column || 'id',
+            sourceDisplayName: row.source_display_name || row.column_name,
+            targetDisplayName: row.target_display_name || row.reference_column || 'id',
+          }],
+        });
+      } else {
+        // 이미 존재하면 fieldMappings에 추가
+        const existingSubTable = screenSubTables[screenId].subTables.find(
+          (st) => st.tableName === referenceTable
+        );
+        if (existingSubTable && existingSubTable.fieldMappings) {
+          const mappingExists = existingSubTable.fieldMappings.some(
+            (fm) => fm.sourceField === row.column_name
+          );
+          if (!mappingExists) {
+            existingSubTable.fieldMappings.push({
+              sourceField: row.column_name,
+              targetField: row.reference_column || 'id',
+              sourceDisplayName: row.source_display_name || row.column_name,
+              targetDisplayName: row.target_display_name || row.reference_column || 'id',
+            });
+          }
+        }
+      }
+    });
+
+    // 3. parentDataMapping 파싱 (selected-items-detail-input 등에서 사용)
+    const parentMappingQuery = `
+      SELECT 
+        sd.screen_id,
+        sd.screen_name,
+        sd.table_name as main_table,
+        sl.properties->>'componentType' as component_type,
+        sl.properties->'componentConfig'->'parentDataMapping' as parent_data_mapping
+      FROM screen_definitions sd
+      JOIN screen_layouts sl ON sd.screen_id = sl.screen_id
+      WHERE sd.screen_id = ANY($1)
+      AND sl.properties->'componentConfig'->'parentDataMapping' IS NOT NULL
+    `;
+
+    const parentMappingResult = await pool.query(parentMappingQuery, [screenIds]);
+
+    parentMappingResult.rows.forEach((row: any) => {
+      const screenId = row.screen_id;
+      const mainTable = row.main_table;
+      const componentType = row.component_type || 'parentDataMapping';
+      const parentDataMapping = row.parent_data_mapping;
+
+      if (!Array.isArray(parentDataMapping)) return;
+
+      if (!screenSubTables[screenId]) {
+        screenSubTables[screenId] = {
+          screenId,
+          screenName: row.screen_name,
+          mainTable: mainTable || '',
+          subTables: [],
+        };
+      }
+
+      parentDataMapping.forEach((mapping: any) => {
+        const sourceTable = mapping.sourceTable;
+        if (!sourceTable || sourceTable === mainTable) return;
+
+        // 중복 체크
+        const existingSubTable = screenSubTables[screenId].subTables.find(
+          (st) => st.tableName === sourceTable
+        );
+
+        const newMapping = {
+          sourceTable: sourceTable, // 연관 테이블 정보 추가
+          sourceField: mapping.sourceField || '',
+          targetField: mapping.targetField || '',
+          sourceDisplayName: mapping.sourceField || '',
+          targetDisplayName: mapping.targetField || '',
+        };
+
+        if (existingSubTable) {
+          // 이미 존재하면 fieldMappings에 추가
+          if (!existingSubTable.fieldMappings) {
+            existingSubTable.fieldMappings = [];
+          }
+          const mappingExists = existingSubTable.fieldMappings.some(
+            (fm: any) => fm.sourceField === newMapping.sourceField && fm.targetField === newMapping.targetField
+          );
+          if (!mappingExists) {
+            existingSubTable.fieldMappings.push(newMapping);
+          }
+        } else {
+          screenSubTables[screenId].subTables.push({
+            tableName: sourceTable,
+            componentType: componentType,
+            relationType: 'parentMapping',
+            fieldMappings: [newMapping],
+          });
+        }
+      });
+    });
+
+    logger.info("parentDataMapping 파싱 완료", { 
+      screenIds, 
+      parentMappingCount: parentMappingResult.rows.length 
+    });
+
+    // 4. rightPanel.relation 파싱 (split-panel-layout 등에서 사용)
+    const rightPanelQuery = `
+      SELECT 
+        sd.screen_id,
+        sd.screen_name,
+        sd.table_name as main_table,
+        sl.properties->>'componentType' as component_type,
+        sl.properties->'componentConfig'->'rightPanel'->'relation' as right_panel_relation,
+        sl.properties->'componentConfig'->'rightPanel'->'tableName' as right_panel_table
+      FROM screen_definitions sd
+      JOIN screen_layouts sl ON sd.screen_id = sl.screen_id
+      WHERE sd.screen_id = ANY($1)
+      AND sl.properties->'componentConfig'->'rightPanel'->'relation' IS NOT NULL
+    `;
+
+    const rightPanelResult = await pool.query(rightPanelQuery, [screenIds]);
+
+    rightPanelResult.rows.forEach((row: any) => {
+      const screenId = row.screen_id;
+      const mainTable = row.main_table;
+      const componentType = row.component_type || 'split-panel-layout';
+      const relation = row.right_panel_relation;
+      const rightPanelTable = row.right_panel_table;
+
+      // relation 객체에서 테이블 및 필드 매핑 추출
+      const subTable = rightPanelTable || relation?.targetTable || relation?.tableName;
+      if (!subTable || subTable === mainTable) return;
+
+      if (!screenSubTables[screenId]) {
+        screenSubTables[screenId] = {
+          screenId,
+          screenName: row.screen_name,
+          mainTable: mainTable || '',
+          subTables: [],
+        };
+      }
+
+      // 중복 체크
+      const existingSubTable = screenSubTables[screenId].subTables.find(
+        (st) => st.tableName === subTable
+      );
+
+      // relation에서 필드 매핑 추출
+      const fieldMappings: Array<{ sourceField: string; targetField: string; sourceDisplayName?: string; targetDisplayName?: string }> = [];
+      
+      if (relation?.sourceField && relation?.targetField) {
+        fieldMappings.push({
+          sourceField: relation.sourceField,
+          targetField: relation.targetField,
+          sourceDisplayName: relation.sourceField,
+          targetDisplayName: relation.targetField,
+        });
+      }
+      
+      // fieldMappings 배열이 있는 경우
+      if (relation?.fieldMappings && Array.isArray(relation.fieldMappings)) {
+        relation.fieldMappings.forEach((fm: any) => {
+          fieldMappings.push({
+            sourceField: fm.sourceField || fm.source_field || '',
+            targetField: fm.targetField || fm.target_field || '',
+            sourceDisplayName: fm.sourceField || fm.source_field || '',
+            targetDisplayName: fm.targetField || fm.target_field || '',
+          });
+        });
+      }
+
+      if (existingSubTable) {
+        // 이미 존재하면 fieldMappings에 추가
+        if (!existingSubTable.fieldMappings) {
+          existingSubTable.fieldMappings = [];
+        }
+        fieldMappings.forEach((newMapping) => {
+          const mappingExists = existingSubTable.fieldMappings!.some(
+            (fm) => fm.sourceField === newMapping.sourceField && fm.targetField === newMapping.targetField
+          );
+          if (!mappingExists) {
+            existingSubTable.fieldMappings!.push(newMapping);
+          }
+        });
+      } else {
+        screenSubTables[screenId].subTables.push({
+          tableName: subTable,
+          componentType: componentType,
+          relationType: 'rightPanelRelation',
+          fieldMappings: fieldMappings.length > 0 ? fieldMappings : undefined,
+        });
+      }
+    });
+
+    logger.info("rightPanel.relation 파싱 완료", { 
+      screenIds, 
+      rightPanelCount: rightPanelResult.rows.length 
+    });
+
+    // 5. 모든 fieldMappings의 한글명을 column_labels에서 가져와서 적용
+    // 모든 테이블/컬럼 조합을 수집
+    const columnLookups: Array<{ tableName: string; columnName: string }> = [];
+    Object.values(screenSubTables).forEach((screenData: any) => {
+      screenData.subTables.forEach((subTable: any) => {
+        if (subTable.fieldMappings) {
+          subTable.fieldMappings.forEach((mapping: any) => {
+            // sourceTable + sourceField (연관 테이블의 컬럼)
+            if (mapping.sourceTable && mapping.sourceField) {
+              columnLookups.push({ tableName: mapping.sourceTable, columnName: mapping.sourceField });
+            }
+            // mainTable + targetField (메인 테이블의 컬럼)
+            if (screenData.mainTable && mapping.targetField) {
+              columnLookups.push({ tableName: screenData.mainTable, columnName: mapping.targetField });
+            }
+          });
+        }
+      });
+    });
+
+    // 중복 제거
+    const uniqueColumnLookups = columnLookups.filter((item, index, self) =>
+      index === self.findIndex((t) => t.tableName === item.tableName && t.columnName === item.columnName)
+    );
+
+    // column_labels에서 한글명 조회
+    const columnLabelsMap: { [key: string]: string } = {};
+    if (uniqueColumnLookups.length > 0) {
+      const columnLabelsQuery = `
+        SELECT 
+          table_name,
+          column_name,
+          column_label
+        FROM column_labels
+        WHERE (table_name, column_name) IN (
+          ${uniqueColumnLookups.map((_, i) => `($${i * 2 + 1}, $${i * 2 + 2})`).join(', ')}
+        )
+      `;
+      const columnLabelsParams = uniqueColumnLookups.flatMap(item => [item.tableName, item.columnName]);
+      
+      try {
+        const columnLabelsResult = await pool.query(columnLabelsQuery, columnLabelsParams);
+        columnLabelsResult.rows.forEach((row: any) => {
+          const key = `${row.table_name}.${row.column_name}`;
+          columnLabelsMap[key] = row.column_label;
+        });
+        logger.info("column_labels 한글명 조회 완료", { count: columnLabelsResult.rows.length });
+      } catch (error: any) {
+        logger.warn("column_labels 한글명 조회 실패 (무시하고 계속 진행):", error.message);
+      }
+    }
+
+    // 각 fieldMappings에 한글명 적용
+    Object.values(screenSubTables).forEach((screenData: any) => {
+      screenData.subTables.forEach((subTable: any) => {
+        if (subTable.fieldMappings) {
+          subTable.fieldMappings.forEach((mapping: any) => {
+            // sourceDisplayName: 연관 테이블의 컬럼 한글명
+            if (mapping.sourceTable && mapping.sourceField) {
+              const sourceKey = `${mapping.sourceTable}.${mapping.sourceField}`;
+              if (columnLabelsMap[sourceKey]) {
+                mapping.sourceDisplayName = columnLabelsMap[sourceKey];
+              }
+            }
+            // targetDisplayName: 메인 테이블의 컬럼 한글명
+            if (screenData.mainTable && mapping.targetField) {
+              const targetKey = `${screenData.mainTable}.${mapping.targetField}`;
+              if (columnLabelsMap[targetKey]) {
+                mapping.targetDisplayName = columnLabelsMap[targetKey];
+              }
+            }
+          });
+        }
+      });
+    });
+
+    logger.info("화면 서브 테이블 정보 조회 완료", { 
+      screenIds, 
+      resultCount: Object.keys(screenSubTables).length,
+      details: Object.values(screenSubTables).map(s => ({
+        screenId: s.screenId,
+        mainTable: s.mainTable,
+        subTables: s.subTables.map(st => st.tableName)
+      }))
+    });
 
     res.json({
       success: true,