diff --git a/frontend/components/unified/UnifiedSelect.tsx b/frontend/components/unified/UnifiedSelect.tsx
index d57ae9ad..a5c604be 100644
--- a/frontend/components/unified/UnifiedSelect.tsx
+++ b/frontend/components/unified/UnifiedSelect.tsx
@@ -621,7 +621,9 @@ export const UnifiedSelect = forwardRef<HTMLDivElement, UnifiedSelectProps>(
           } else if (source === "select" || source === "distinct") {
             // 해당 테이블의 해당 컬럼에서 DISTINCT 값 조회
             // tableName, columnName은 props에서 가져옴
-            if (tableName && columnName) {
+            // 🆕 columnName이 컴포넌트 ID 형식(comp_xxx)이면 유효하지 않으므로 건너뜀
+            const isValidColumnName = columnName && !columnName.startsWith("comp_");
+            if (tableName && isValidColumnName) {
               const response = await apiClient.get(`/entity/${tableName}/distinct/${columnName}`);
               const data = response.data;
               if (data.success && data.data) {
@@ -630,6 +632,9 @@ export const UnifiedSelect = forwardRef<HTMLDivElement, UnifiedSelectProps>(
                   label: String(item.label),
                 }));
               }
+            } else if (!isValidColumnName) {
+              // columnName이 없거나 유효하지 않으면 빈 옵션
+              console.warn("UnifiedSelect: 유효한 columnName이 없어 옵션을 로드하지 않습니다.", { tableName, columnName });
             }
           }
 
diff --git a/frontend/lib/registry/DynamicComponentRenderer.tsx b/frontend/lib/registry/DynamicComponentRenderer.tsx
index 2a7440f6..8ef6a943 100644
--- a/frontend/lib/registry/DynamicComponentRenderer.tsx
+++ b/frontend/lib/registry/DynamicComponentRenderer.tsx
@@ -279,14 +279,15 @@ export const DynamicComponentRenderer: React.FC<DynamicComponentRendererProps> =
         );
 
       case "unified-select":
+        // 🆕 unified-select는 항상 테이블 컬럼에서 distinct 값을 자동 로드
+        // 정적 옵션(static)은 사용하지 않음
         return (
           <UnifiedSelect
             unifiedType="UnifiedSelect"
             {...commonProps}
             config={{
               mode: config.mode || "dropdown",
-              source: config.source || "static",
-              options: config.options || [],
+              source: config.source || "distinct",  // 기본값: 테이블 컬럼에서 distinct 조회
               multiple: config.multiple,
               searchable: config.searchable,
               codeGroup: config.codeGroup,
diff --git a/frontend/lib/utils/layoutV2Converter.ts b/frontend/lib/utils/layoutV2Converter.ts
index 767de5af..65da6238 100644
--- a/frontend/lib/utils/layoutV2Converter.ts
+++ b/frontend/lib/utils/layoutV2Converter.ts
@@ -45,6 +45,9 @@ export function convertV2ToLegacy(v2Layout: LayoutV2 | null): LegacyLayoutData |
     const componentType = getComponentTypeFromUrl(comp.url);
     const defaults = getDefaultsByUrl(comp.url);
     const mergedConfig = mergeComponentConfig(defaults, comp.overrides);
+    
+    // 🆕 overrides에서 상위 레벨 속성들 추출
+    const overrides = comp.overrides || {};
 
     return {
       id: comp.id,
@@ -54,8 +57,16 @@ export function convertV2ToLegacy(v2Layout: LayoutV2 | null): LegacyLayoutData |
       position: comp.position,
       size: comp.size,
       componentConfig: mergedConfig,
+      // 🆕 상위 레벨 속성 복원 (테이블/컬럼 연결 정보)
+      tableName: overrides.tableName,
+      columnName: overrides.columnName,
+      label: overrides.label || mergedConfig.label || "",  // 라벨이 없으면 빈 문자열
+      required: overrides.required,
+      readonly: overrides.readonly,
+      codeCategory: overrides.codeCategory,
+      inputType: overrides.inputType,
+      webType: overrides.webType,
       // 기존 구조 호환을 위한 추가 필드
-      label: mergedConfig.label || componentType,
       style: {},
       parentId: null,
       gridColumns: 12,
@@ -94,9 +105,23 @@ export function convertLegacyToV2(legacyLayout: LegacyLayoutData): LayoutV2 {
     // 기본값 가져오기
     const defaults = getDefaultsByUrl(url);
     
+    // 🆕 컴포넌트 상위 레벨 속성들도 포함 (tableName, columnName 등)
+    const topLevelProps: Record<string, any> = {};
+    if (comp.tableName) topLevelProps.tableName = comp.tableName;
+    if (comp.columnName) topLevelProps.columnName = comp.columnName;
+    if (comp.label) topLevelProps.label = comp.label;
+    if (comp.required !== undefined) topLevelProps.required = comp.required;
+    if (comp.readonly !== undefined) topLevelProps.readonly = comp.readonly;
+    if (comp.codeCategory) topLevelProps.codeCategory = comp.codeCategory;
+    if (comp.inputType) topLevelProps.inputType = comp.inputType;
+    if (comp.webType) topLevelProps.webType = comp.webType;
+    
     // 현재 설정에서 차이값만 추출
     const fullConfig = comp.componentConfig || {};
-    const overrides = extractCustomConfig(fullConfig, defaults);
+    const configOverrides = extractCustomConfig(fullConfig, defaults);
+    
+    // 상위 레벨 속성과 componentConfig 병합
+    const overrides = { ...topLevelProps, ...configOverrides };
 
     return {
       id: comp.id,