diff --git a/components/table/__tests__/Table.sorter.test.tsx b/components/table/__tests__/Table.sorter.test.tsx
index 8b4c09211437..e11a613a111a 100644
--- a/components/table/__tests__/Table.sorter.test.tsx
+++ b/components/table/__tests__/Table.sorter.test.tsx
@@ -321,6 +321,21 @@ describe('Table.sorter', () => {
     expect(container.querySelector('.ant-tooltip-open')).toBeTruthy();
     fireEvent.mouseOut(container.querySelector('.ant-table-column-sorters')!);
 
+    // should merge original title into showSorterTooltip object
+    rerender(
+      createTable({
+        showSorterTooltip: {
+          overlayClassName: 'custom-tooltip',
+        },
+      }),
+    );
+    fireEvent.mouseEnter(container.querySelector('.ant-table-column-sorters')!);
+    act(() => {
+      jest.runAllTimers();
+    });
+    expect(container.querySelector('.ant-tooltip-open')).toBeTruthy();
+    fireEvent.mouseOut(container.querySelector('.ant-table-column-sorters')!);
+
     // Root to false
     rerender(createTable({ showSorterTooltip: false }));
     act(() => {
diff --git a/components/table/hooks/useSorter.tsx b/components/table/hooks/useSorter.tsx
index c2551decd19a..6937c6855c62 100644
--- a/components/table/hooks/useSorter.tsx
+++ b/components/table/hooks/useSorter.tsx
@@ -168,7 +168,12 @@ function injectSorter<RecordType>(
         sortTip = triggerAsc;
       }
       const tooltipProps: TooltipProps =
-        typeof showSorterTooltip === 'object' ? showSorterTooltip : { title: sortTip };
+        typeof showSorterTooltip === 'object'
+          ? {
+              title: sortTip,
+              ...showSorterTooltip,
+            }
+          : { title: sortTip };
       newColumn = {
         ...newColumn,
         className: classNames(newColumn.className, { [`${prefixCls}-column-sort`]: sortOrder }),