diff --git a/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutComponent.tsx b/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutComponent.tsx
index 483fc393..b73a1224 100644
--- a/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutComponent.tsx
+++ b/frontend/lib/registry/components/split-panel-layout/SplitPanelLayoutComponent.tsx
@@ -320,7 +320,9 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
     if (!rightTableName || isDesignMode) return;
 
     const rightTableId = `split-panel-right-${component.id}`;
-    const rightColumns = rightTableColumns.map((col: any) => col.columnName || col.column_name).filter(Boolean);
+    // 🔧 화면에 표시되는 컬럼만 등록 (displayColumns 또는 columns)
+    const displayColumns = componentConfig.rightPanel?.columns || [];
+    const rightColumns = displayColumns.map((col: any) => col.columnName || col.name || col).filter(Boolean);
 
     if (rightColumns.length > 0) {
       registerTable({
@@ -343,7 +345,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
 
       return () => unregisterTable(rightTableId);
     }
-  }, [component.id, componentConfig.rightPanel?.tableName, rightTableColumns, rightColumnLabels, component.title, isDesignMode]);
+  }, [component.id, componentConfig.rightPanel?.tableName, componentConfig.rightPanel?.columns, rightColumnLabels, component.title, isDesignMode]);
 
   // 좌측 테이블 컬럼 라벨 로드
   useEffect(() => {