diff --git a/backend-node/src/services/dataService.ts b/backend-node/src/services/dataService.ts
index 75c57673..8c6e63f0 100644
--- a/backend-node/src/services/dataService.ts
+++ b/backend-node/src/services/dataService.ts
@@ -254,7 +254,10 @@ class DataService {
           key !== "limit" &&
           key !== "offset" &&
           key !== "orderBy" &&
-          key !== "userLang"
+          key !== "userLang" &&
+          key !== "page" &&
+          key !== "pageSize" &&
+          key !== "size"
         ) {
           // 컬럼명 검증 (SQL 인젝션 방지)
           if (!/^[a-zA-Z_][a-zA-Z0-9_]*$/.test(key)) {
diff --git a/frontend/lib/registry/components/pivot-grid/PivotGridComponent.tsx b/frontend/lib/registry/components/pivot-grid/PivotGridComponent.tsx
index 4f4595ff..b55907a4 100644
--- a/frontend/lib/registry/components/pivot-grid/PivotGridComponent.tsx
+++ b/frontend/lib/registry/components/pivot-grid/PivotGridComponent.tsx
@@ -303,6 +303,17 @@ export const PivotGridComponent: React.FC<PivotGridProps> = ({
     externalDataLength: externalData?.length,
     initialFieldsLength: initialFields?.length,
   });
+  
+  // 🆕 데이터 샘플 확인
+  if (externalData && externalData.length > 0) {
+    console.log("🔶 첫 번째 데이터 샘플:", externalData[0]);
+    console.log("🔶 전체 데이터 개수:", externalData.length);
+  }
+  
+  // 🆕 필드 설정 확인
+  if (initialFields && initialFields.length > 0) {
+    console.log("🔶 필드 설정:", initialFields);
+  }
   // ==================== 상태 ====================
 
   const [fields, setFields] = useState<PivotFieldConfig[]>(initialFields);
@@ -312,6 +323,9 @@ export const PivotGridComponent: React.FC<PivotGridProps> = ({
     sortConfig: null,
     filterConfig: {},
   });
+  
+  // 🆕 초기 로드 시 자동 확장 (첫 레벨만)
+  const [isInitialExpanded, setIsInitialExpanded] = useState(false);
   const [isFullscreen, setIsFullscreen] = useState(false);
   const [showFieldPanel, setShowFieldPanel] = useState(false); // 기본적으로 접힌 상태
   const [showFieldChooser, setShowFieldChooser] = useState(false);
@@ -494,13 +508,44 @@ export const PivotGridComponent: React.FC<PivotGridProps> = ({
       return null;
     }
 
-    return processPivotData(
+    const result = processPivotData(
       filteredData,
       visibleFields,
       pivotState.expandedRowPaths,
       pivotState.expandedColumnPaths
     );
+    
+    // 🆕 피벗 결과 확인
+    console.log("🔶 피벗 처리 결과:", {
+      hasResult: !!result,
+      flatRowsCount: result?.flatRows?.length,
+      flatColumnsCount: result?.flatColumns?.length,
+      dataMatrixSize: result?.dataMatrix?.size,
+      expandedRowPaths: pivotState.expandedRowPaths.length,
+      expandedColumnPaths: pivotState.expandedColumnPaths.length,
+    });
+    
+    return result;
   }, [filteredData, fields, pivotState.expandedRowPaths, pivotState.expandedColumnPaths]);
+  
+  // 🆕 초기 로드 시 첫 레벨 자동 확장
+  useEffect(() => {
+    if (!isInitialExpanded && pivotResult && pivotResult.flatRows.length > 0) {
+      // 첫 레벨 행들의 경로 수집 (level 0인 행들)
+      const firstLevelPaths = pivotResult.flatRows
+        .filter(row => row.level === 0 && row.hasChildren)
+        .map(row => row.path);
+      
+      if (firstLevelPaths.length > 0) {
+        console.log("🔶 초기 자동 확장:", firstLevelPaths);
+        setPivotState(prev => ({
+          ...prev,
+          expandedRowPaths: firstLevelPaths,
+        }));
+        setIsInitialExpanded(true);
+      }
+    }
+  }, [pivotResult, isInitialExpanded]);
 
   // 조건부 서식용 전체 값 수집
   const allCellValues = useMemo(() => {
@@ -665,6 +710,8 @@ export const PivotGridComponent: React.FC<PivotGridProps> = ({
   // 행 확장/축소
   const handleToggleRowExpand = useCallback(
     (path: string[]) => {
+      console.log("🔶 행 확장/축소 클릭:", path);
+      
       setPivotState((prev) => {
         const pathKey = pathToKey(path);
         const existingIndex = prev.expandedRowPaths.findIndex(
@@ -673,13 +720,16 @@ export const PivotGridComponent: React.FC<PivotGridProps> = ({
 
         let newPaths: string[][];
         if (existingIndex >= 0) {
+          console.log("🔶 행 축소:", path);
           newPaths = prev.expandedRowPaths.filter(
             (_, i) => i !== existingIndex
           );
         } else {
+          console.log("🔶 행 확장:", path);
           newPaths = [...prev.expandedRowPaths, path];
         }
 
+        console.log("🔶 새로운 확장 경로:", newPaths);
         onExpandChange?.(newPaths);
 
         return {
diff --git a/frontend/lib/registry/components/pivot-grid/PivotGridRenderer.tsx b/frontend/lib/registry/components/pivot-grid/PivotGridRenderer.tsx
index 8e3563d9..08b21369 100644
--- a/frontend/lib/registry/components/pivot-grid/PivotGridRenderer.tsx
+++ b/frontend/lib/registry/components/pivot-grid/PivotGridRenderer.tsx
@@ -1,12 +1,13 @@
 "use client";
 
-import React from "react";
+import React, { useEffect, useState } from "react";
 import { AutoRegisteringComponentRenderer } from "../../AutoRegisteringComponentRenderer";
 import { createComponentDefinition } from "../../utils/createComponentDefinition";
 import { ComponentCategory } from "@/types/component";
 import { PivotGridComponent } from "./PivotGridComponent";
 import { PivotGridConfigPanel } from "./PivotGridConfigPanel";
 import { PivotFieldConfig } from "./types";
+import { dataApi } from "@/lib/api/data";
 
 // ==================== 샘플 데이터 (미리보기용) ====================
 
@@ -95,6 +96,48 @@ const PivotGridWrapper: React.FC<any> = (props) => {
   const configFields = componentConfig.fields || props.fields;
   const configData = props.data;
   
+  // 🆕 테이블에서 데이터 자동 로딩
+  const [loadedData, setLoadedData] = useState<any[]>([]);
+  const [isLoading, setIsLoading] = useState(false);
+  
+  useEffect(() => {
+    const loadTableData = async () => {
+      const tableName = componentConfig.dataSource?.tableName;
+      
+      // 데이터가 이미 있거나, 테이블명이 없으면 로딩하지 않음
+      if (configData || !tableName || props.isDesignMode) {
+        return;
+      }
+      
+      setIsLoading(true);
+      try {
+        console.log("🔷 [PivotGrid] 테이블 데이터 로딩 시작:", tableName);
+        
+        const response = await dataApi.getTableData(tableName, {
+          page: 1,
+          size: 10000, // 피벗 분석용 대량 데이터 (pageSize → size)
+        });
+        
+        console.log("🔷 [PivotGrid] API 응답:", response);
+        
+        // dataApi.getTableData는 { data, total, page, size, totalPages } 구조
+        if (response.data && Array.isArray(response.data)) {
+          setLoadedData(response.data);
+          console.log("✅ [PivotGrid] 데이터 로딩 완료:", response.data.length, "건");
+        } else {
+          console.error("❌ [PivotGrid] 데이터 로딩 실패: 응답에 data 배열이 없음");
+          setLoadedData([]);
+        }
+      } catch (error) {
+        console.error("❌ [PivotGrid] 데이터 로딩 에러:", error);
+      } finally {
+        setIsLoading(false);
+      }
+    };
+    
+    loadTableData();
+  }, [componentConfig.dataSource?.tableName, configData, props.isDesignMode]);
+  
   // 디버깅 로그
   console.log("🔷 PivotGridWrapper props:", {
     isDesignMode: props.isDesignMode,
@@ -103,23 +146,28 @@ const PivotGridWrapper: React.FC<any> = (props) => {
     hasConfig: !!props.config,
     hasData: !!configData,
     dataLength: configData?.length,
+    hasLoadedData: loadedData.length > 0,
+    loadedDataLength: loadedData.length,
     hasFields: !!configFields,
     fieldsLength: configFields?.length,
+    isLoading,
   });
 
   // 디자인 모드 판단:
   // 1. isDesignMode === true
   // 2. isInteractive === false (편집 모드)
-  // 3. 데이터가 없는 경우
   const isDesignMode = props.isDesignMode === true || props.isInteractive === false;
-  const hasValidData = configData && Array.isArray(configData) && configData.length > 0;
+  
+  // 🆕 실제 데이터 우선순위: props.data > loadedData > 샘플 데이터
+  const actualData = configData || loadedData;
+  const hasValidData = actualData && Array.isArray(actualData) && actualData.length > 0;
   const hasValidFields = configFields && Array.isArray(configFields) && configFields.length > 0;
   
   // 디자인 모드이거나 데이터가 없으면 샘플 데이터 사용
-  const usePreviewData = isDesignMode || !hasValidData;
+  const usePreviewData = isDesignMode || (!hasValidData && !isLoading);
 
   // 최종 데이터/필드 결정
-  const finalData = usePreviewData ? SAMPLE_DATA : configData;
+  const finalData = usePreviewData ? SAMPLE_DATA : actualData;
   const finalFields = hasValidFields ? configFields : SAMPLE_FIELDS;
   const finalTitle = usePreviewData 
     ? (componentConfig.title || props.title || "피벗 그리드") + " (미리보기)"
@@ -140,6 +188,18 @@ const PivotGridWrapper: React.FC<any> = (props) => {
     showColumnTotals: true,
   };
 
+  // 🆕 로딩 중 표시
+  if (isLoading) {
+    return (
+      <div className="flex items-center justify-center h-64 bg-muted/30 rounded-lg">
+        <div className="text-center space-y-2">
+          <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary mx-auto"></div>
+          <p className="text-sm text-muted-foreground">데이터 로딩 중...</p>
+        </div>
+      </div>
+    );
+  }
+
   return (
     <PivotGridComponent
       title={finalTitle}
diff --git a/frontend/lib/registry/components/pivot-grid/components/FieldChooser.tsx b/frontend/lib/registry/components/pivot-grid/components/FieldChooser.tsx
index de4a8948..89fe5128 100644
--- a/frontend/lib/registry/components/pivot-grid/components/FieldChooser.tsx
+++ b/frontend/lib/registry/components/pivot-grid/components/FieldChooser.tsx
@@ -401,7 +401,7 @@ export const FieldChooser: React.FC<FieldChooserProps> = ({
         </div>
 
         {/* 필드 목록 */}
-        <ScrollArea className="flex-1 -mx-6 px-6">
+        <ScrollArea className="flex-1 -mx-6 px-6 max-h-[40vh] overflow-y-auto">
           <div className="space-y-2 py-2">
             {filteredFields.length === 0 ? (
               <div className="text-center py-8 text-muted-foreground">