diff --git a/backend-node/src/services/ddlExecutionService.ts b/backend-node/src/services/ddlExecutionService.ts
index 2ed01231..c7a611d3 100644
--- a/backend-node/src/services/ddlExecutionService.ts
+++ b/backend-node/src/services/ddlExecutionService.ts
@@ -104,7 +104,7 @@ export class DDLExecutionService {
         await this.saveTableMetadata(client, tableName, description);
 
         // 5-3. 컬럼 메타데이터 저장
-        await this.saveColumnMetadata(client, tableName, columns);
+        await this.saveColumnMetadata(client, tableName, columns, userCompanyCode);
       });
 
       // 6. 성공 로그 기록
@@ -272,7 +272,7 @@ export class DDLExecutionService {
         await client.query(ddlQuery);
 
         // 6-2. 컬럼 메타데이터 저장
-        await this.saveColumnMetadata(client, tableName, [column]);
+        await this.saveColumnMetadata(client, tableName, [column], userCompanyCode);
       });
 
       // 7. 성공 로그 기록
@@ -446,7 +446,8 @@ CREATE TABLE "${tableName}" (${baseColumns},
   private async saveColumnMetadata(
     client: any,
     tableName: string,
-    columns: CreateColumnDefinition[]
+    columns: CreateColumnDefinition[],
+    companyCode: string
   ): Promise<void> {
     // 먼저 table_labels에 테이블 정보가 있는지 확인하고 없으면 생성
     await client.query(
@@ -508,19 +509,19 @@ CREATE TABLE "${tableName}" (${baseColumns},
       await client.query(
         `
         INSERT INTO table_type_columns (
-          table_name, column_name, input_type, detail_settings, 
+          table_name, column_name, company_code, input_type, detail_settings, 
           is_nullable, display_order, created_date, updated_date
         ) VALUES (
-          $1, $2, $3, '{}',
-          'Y', $4, now(), now()
+          $1, $2, $3, $4, '{}',
+          'Y', $5, now(), now()
         )
-        ON CONFLICT (table_name, column_name) 
+        ON CONFLICT (table_name, column_name, company_code) 
         DO UPDATE SET 
-          input_type = $3,
-          display_order = $4,
+          input_type = $4,
+          display_order = $5,
           updated_date = now()
         `,
-        [tableName, defaultCol.name, defaultCol.inputType, defaultCol.order]
+        [tableName, defaultCol.name, companyCode, defaultCol.inputType, defaultCol.order]
       );
     }
 
@@ -535,20 +536,20 @@ CREATE TABLE "${tableName}" (${baseColumns},
       await client.query(
         `
         INSERT INTO table_type_columns (
-          table_name, column_name, input_type, detail_settings, 
+          table_name, column_name, company_code, input_type, detail_settings, 
           is_nullable, display_order, created_date, updated_date
         ) VALUES (
-          $1, $2, $3, $4,
-          'Y', $5, now(), now()
+          $1, $2, $3, $4, $5,
+          'Y', $6, now(), now()
         )
-        ON CONFLICT (table_name, column_name) 
+        ON CONFLICT (table_name, column_name, company_code) 
         DO UPDATE SET 
-          input_type = $3,
-          detail_settings = $4,
-          display_order = $5,
+          input_type = $4,
+          detail_settings = $5,
+          display_order = $6,
           updated_date = now()
         `,
-        [tableName, column.name, inputType, detailSettings, i]
+        [tableName, column.name, companyCode, inputType, detailSettings, i]
       );
     }
 
diff --git a/backend-node/src/services/menuService.ts b/backend-node/src/services/menuService.ts
index b22beb88..86df579c 100644
--- a/backend-node/src/services/menuService.ts
+++ b/backend-node/src/services/menuService.ts
@@ -36,29 +36,61 @@ export async function getSiblingMenuObjids(menuObjid: number): Promise<number[]>
   try {
     logger.debug("메뉴 스코프 조회 시작", { menuObjid });
 
-    // 1. 현재 메뉴 자신을 포함
-    const menuObjids = [menuObjid];
+    // 1. 현재 메뉴 정보 조회 (부모 ID 확인)
+    const currentMenuQuery = `
+      SELECT parent_obj_id FROM menu_info 
+      WHERE objid = $1
+    `;
+    const currentMenuResult = await pool.query(currentMenuQuery, [menuObjid]);
 
-    // 2. 현재 메뉴의 자식 메뉴들 조회
-    const childrenQuery = `
+    if (currentMenuResult.rows.length === 0) {
+      logger.warn("메뉴를 찾을 수 없음, 자기 자신만 반환", { menuObjid });
+      return [menuObjid];
+    }
+
+    const parentObjId = Number(currentMenuResult.rows[0].parent_obj_id);
+
+    // 2. 최상위 메뉴(parent_obj_id = 0)는 자기 자신만 반환
+    if (parentObjId === 0) {
+      logger.debug("최상위 메뉴, 자기 자신만 반환", { menuObjid });
+      return [menuObjid];
+    }
+
+    // 3. 형제 메뉴들 조회 (같은 부모를 가진 메뉴들)
+    const siblingsQuery = `
       SELECT objid FROM menu_info 
       WHERE parent_obj_id = $1
       ORDER BY objid
     `;
-    const childrenResult = await pool.query(childrenQuery, [menuObjid]);
+    const siblingsResult = await pool.query(siblingsQuery, [parentObjId]);
 
-    const childObjids = childrenResult.rows.map((row) => Number(row.objid));
+    const siblingObjids = siblingsResult.rows.map((row) => Number(row.objid));
 
-    // 3. 자신 + 자식을 합쳐서 정렬
-    const allObjids = Array.from(new Set([...menuObjids, ...childObjids])).sort((a, b) => a - b);
+    // 4. 각 형제 메뉴(자기 자신 포함)의 자식 메뉴들도 조회
+    const allObjids = [...siblingObjids];
+    
+    for (const siblingObjid of siblingObjids) {
+      const childrenQuery = `
+        SELECT objid FROM menu_info 
+        WHERE parent_obj_id = $1
+        ORDER BY objid
+      `;
+      const childrenResult = await pool.query(childrenQuery, [siblingObjid]);
+      const childObjids = childrenResult.rows.map((row) => Number(row.objid));
+      allObjids.push(...childObjids);
+    }
+
+    // 5. 중복 제거 및 정렬
+    const uniqueObjids = Array.from(new Set(allObjids)).sort((a, b) => a - b);
 
     logger.debug("메뉴 스코프 조회 완료", { 
-      menuObjid, 
-      childCount: childObjids.length, 
-      totalCount: allObjids.length 
+      menuObjid,
+      parentObjId,
+      siblingCount: siblingObjids.length, 
+      totalCount: uniqueObjids.length 
     });
 
-    return allObjids;
+    return uniqueObjids;
   } catch (error: any) {
     logger.error("메뉴 스코프 조회 실패", { 
       menuObjid, 
diff --git a/backend-node/src/services/tableCategoryValueService.ts b/backend-node/src/services/tableCategoryValueService.ts
index 29cad453..c5d51db5 100644
--- a/backend-node/src/services/tableCategoryValueService.ts
+++ b/backend-node/src/services/tableCategoryValueService.ts
@@ -179,7 +179,8 @@ class TableCategoryValueService {
       } else {
         // 일반 회사: 자신의 카테고리 값만 조회
         if (menuObjid && siblingObjids.length > 0) {
-          // 메뉴 스코프 적용
+          // 메뉴 스코프 적용 + created_menu_objid 필터링
+          // 현재 메뉴 스코프(형제 메뉴)에서 생성된 값만 표시
           query = `
             SELECT 
               value_id AS "valueId",
@@ -197,6 +198,7 @@ class TableCategoryValueService {
               is_default AS "isDefault",
               company_code AS "companyCode",
               menu_objid AS "menuObjid",
+              created_menu_objid AS "createdMenuObjid",
               created_at AS "createdAt",
               updated_at AS "updatedAt",
               created_by AS "createdBy",
@@ -206,6 +208,10 @@ class TableCategoryValueService {
               AND column_name = $2
               AND menu_objid = ANY($3)
               AND company_code = $4
+              AND (
+                created_menu_objid = ANY($3)  -- 형제 메뉴에서 생성된 값만
+                OR created_menu_objid IS NULL -- 레거시 데이터 (모든 메뉴에서 보임)
+              )
           `;
           params = [tableName, columnName, siblingObjids, companyCode];
         } else {
@@ -331,8 +337,8 @@ class TableCategoryValueService {
         INSERT INTO table_column_category_values (
           table_name, column_name, value_code, value_label, value_order,
           parent_value_id, depth, description, color, icon,
-          is_active, is_default, company_code, menu_objid, created_by
-        ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15)
+          is_active, is_default, company_code, menu_objid, created_menu_objid, created_by
+        ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16)
         RETURNING 
           value_id AS "valueId",
           table_name AS "tableName",
@@ -349,6 +355,7 @@ class TableCategoryValueService {
           is_default AS "isDefault",
           company_code AS "companyCode",
           menu_objid AS "menuObjid",
+          created_menu_objid AS "createdMenuObjid",
           created_at AS "createdAt",
           created_by AS "createdBy"
       `;
@@ -368,6 +375,7 @@ class TableCategoryValueService {
         value.isDefault || false,
         companyCode,
         menuObjid, // ← 메뉴 OBJID 저장
+        menuObjid, // ← 🆕 생성 메뉴 OBJID 저장 (같은 값)
         userId,
       ]);
 
diff --git a/frontend/components/screen/widgets/CategoryWidget.tsx b/frontend/components/screen/widgets/CategoryWidget.tsx
index 2974ed60..a4e93256 100644
--- a/frontend/components/screen/widgets/CategoryWidget.tsx
+++ b/frontend/components/screen/widgets/CategoryWidget.tsx
@@ -49,6 +49,7 @@ export function CategoryWidget({ widgetId, tableName, menuObjid, component, ...p
   const effectiveMenuObjid = menuObjid || props.menuObjid;
   
   const [selectedColumn, setSelectedColumn] = useState<{
+    uniqueKey: string; // 테이블명.컬럼명 형식
     columnName: string;
     columnLabel: string;
     tableName: string;
@@ -98,10 +99,12 @@ export function CategoryWidget({ widgetId, tableName, menuObjid, component, ...p
       <div style={{ width: `${leftWidth}%` }} className="pr-3">
         <CategoryColumnList
           tableName={tableName}
-          selectedColumn={selectedColumn?.columnName || null}
-          onColumnSelect={(columnName, columnLabel, tableName) =>
-            setSelectedColumn({ columnName, columnLabel, tableName })
-          }
+          selectedColumn={selectedColumn?.uniqueKey || null}
+          onColumnSelect={(uniqueKey, columnLabel, tableName) => {
+            // uniqueKey는 "테이블명.컬럼명" 형식
+            const columnName = uniqueKey.split('.')[1];
+            setSelectedColumn({ uniqueKey, columnName, columnLabel, tableName });
+          }}
           menuObjid={effectiveMenuObjid}
         />
       </div>
@@ -118,6 +121,7 @@ export function CategoryWidget({ widgetId, tableName, menuObjid, component, ...p
       <div style={{ width: `${100 - leftWidth - 1}%` }} className="pl-3">
         {selectedColumn ? (
           <CategoryValueManager
+            key={selectedColumn.uniqueKey} // 테이블명.컬럼명으로 컴포넌트 재생성
             tableName={selectedColumn.tableName}
             columnName={selectedColumn.columnName}
             columnLabel={selectedColumn.columnLabel}
diff --git a/frontend/components/table-category/CategoryColumnList.tsx b/frontend/components/table-category/CategoryColumnList.tsx
index 08a33d90..c75676ba 100644
--- a/frontend/components/table-category/CategoryColumnList.tsx
+++ b/frontend/components/table-category/CategoryColumnList.tsx
@@ -147,17 +147,18 @@ export function CategoryColumnList({ tableName, selectedColumn, onColumnSelect,
       <div className="space-y-2">
         {columns.map((column) => {
           const uniqueKey = `${column.tableName}.${column.columnName}`;
+          const isSelected = selectedColumn === uniqueKey; // 테이블명.컬럼명으로 비교
           return (
             <div
               key={uniqueKey}
-              onClick={() => onColumnSelect(column.columnName, column.columnLabel || column.columnName, column.tableName)}
+              onClick={() => onColumnSelect(uniqueKey, column.columnLabel || column.columnName, column.tableName)}
               className={`cursor-pointer rounded-lg border px-4 py-2 transition-all ${
-                selectedColumn === column.columnName ? "border-primary bg-primary/10 shadow-sm" : "hover:bg-muted/50"
+                isSelected ? "border-primary bg-primary/10 shadow-sm" : "hover:bg-muted/50"
               }`}
             >
               <div className="flex items-center gap-2">
                 <FolderTree
-                  className={`h-4 w-4 ${selectedColumn === column.columnName ? "text-primary" : "text-muted-foreground"}`}
+                  className={`h-4 w-4 ${isSelected ? "text-primary" : "text-muted-foreground"}`}
                 />
                 <div className="flex-1">
                   <h4 className="text-sm font-semibold">{column.columnLabel || column.columnName}</h4>