diff --git a/apps/st/src/components/module/DataGrid.tsx b/apps/st/src/components/module/DataGrid.tsx
index 71229fc04..b762ed5cb 100644
--- a/apps/st/src/components/module/DataGrid.tsx
+++ b/apps/st/src/components/module/DataGrid.tsx
@@ -782,10 +782,14 @@ const DataGrid = ({ columnInfo, rowStartNum, isExcelImport = true, isExcelExport
                         rows={rowData}
                         onInitialized={(grid) => {
                             (grid as { onSorting?: (g: unknown, f: unknown[], d: unknown[]) => boolean }).onSorting = createOnSortingHandler(columns, setRowData, sortDirRef, originalRowsRef);
-                            const dp = gridRef.current?.dataProvider as { setFields?: (fields: unknown[]) => void } | undefined;
+                            const dp = gridRef.current?.dataProvider as { setFields?: (fields: unknown[]) => void; setRows?: (rows: Record<string, string | number>[]) => void } | undefined;
                             if (dp?.setFields) {
                                 dp.setFields(buildFieldsFromColumns(columns));
                             }
+                            // setFields 호출 직후 행 데이터 적용 (realgrid-react의 setRows 타이밍 이슈 방지)
+                            if (dp?.setRows && rowData?.length) {
+                                dp.setRows(rowData);
+                            }
                         }}
                     >
                     {columns.map((column) => (