diff --git a/src/table/TR.tsx b/src/table/TR.tsx
index 8ac8b2430..111dac27e 100644
--- a/src/table/TR.tsx
+++ b/src/table/TR.tsx
@@ -113,6 +113,7 @@ export default function TR(props: TrProps) {
     }
     // eslint-disable-next-line
   }, [virtualConfig.isVirtualScroll, trRef, row]);
+
   const columnVNodeList = props.columns?.map((col, colIndex) => {
     const cellSpans: RowspanColspan = {};
     const params = {
diff --git a/src/table/defaultProps.ts b/src/table/defaultProps.ts
index 82a2ec0ab..3e0343bd7 100644
--- a/src/table/defaultProps.ts
+++ b/src/table/defaultProps.ts
@@ -40,7 +40,7 @@ export const primaryTableDefaultProps: Pick<
   columnControllerVisible: undefined,
   columns: [],
   expandIcon: true,
-  defaultExpandedRowKeys: undefined,
+  defaultExpandedRowKeys: [],
   multipleSort: false,
   reserveSelectedRowOnPaginate: true,
   defaultSelectedRowKeys: [],
diff --git a/src/table/hooks/useRowExpand.tsx b/src/table/hooks/useRowExpand.tsx
index eaca0a899..be9c2bfb1 100644
--- a/src/table/hooks/useRowExpand.tsx
+++ b/src/table/hooks/useRowExpand.tsx
@@ -29,22 +29,19 @@ export default function useRowExpand(props: TdPrimaryTableProps) {
     defaultExpandedRowKeys: props.defaultExpandedRowKeys || [],
   });
 
-  // 用于在可展开收起的场景给各行添加类名使用，如果没有配置则不加相关类名
-  const innerExpandedRowKeys = props.expandedRowKeys || props.defaultExpandedRowKeys ? tExpandedRowKeys : undefined;
+  const showExpandedRow = Boolean(expandedRow);
 
   const getExpandedRowClass = useCallback(
     (params) => {
-      if (!innerExpandedRowKeys) return null;
+      if (!showExpandedRow) return null;
       const { row } = params;
       const { rowKey } = row;
       const currentRowKey = get(row, rowKey || 'id');
       return tableExpandClasses[tExpandedRowKeys?.includes(currentRowKey) ? 'rowExpanded' : 'rowFolded'];
     },
-    [tExpandedRowKeys, innerExpandedRowKeys, tableExpandClasses],
+    [tExpandedRowKeys, tableExpandClasses, showExpandedRow],
   );
 
-  const showExpandedRow = Boolean(expandedRow);
-
   const showExpandIconColumn = props.expandIcon !== false && showExpandedRow;
 
   const isFirstColumnFixed = props.columns?.[0]?.fixed === 'left';
@@ -131,7 +128,6 @@ export default function useRowExpand(props: TdPrimaryTableProps) {
     getExpandColumn,
     renderExpandedRow,
     onInnerExpandRowClick,
-    innerExpandedRowKeys,
     getExpandedRowClass,
   };
 }