diff --git a/src/Select.tsx b/src/Select.tsx
index 59f35f97..a1b13d96 100644
--- a/src/Select.tsx
+++ b/src/Select.tsx
@@ -431,15 +431,26 @@ const Select = React.forwardRef<BaseSelectRef, SelectProps<any, DefaultOptionTyp
       mergedSearchValue,
       mergedFieldNames,
     ]);
-
+    const sorter = (options: DefaultOptionType[]) => {
+      const sortedOptions = [...options].sort((a, b) =>
+        filterSort(a, b, { searchValue: mergedSearchValue }),
+      );
+      const sortedOptionsWithNested = sortedOptions.map((item) => {
+        if (Array.isArray(item.options)) {
+          return {
+            ...item,
+            options: sorter(item.options),
+          };
+        }
+        return item;
+      });
+      return sortedOptionsWithNested;
+    };
     const orderedFilteredOptions = React.useMemo(() => {
       if (!filterSort) {
         return filledSearchOptions;
       }
-
-      return [...filledSearchOptions].sort((a, b) =>
-        filterSort(a, b, { searchValue: mergedSearchValue }),
-      );
+      return sorter(filledSearchOptions);
     }, [filledSearchOptions, filterSort, mergedSearchValue]);
 
     const displayOptions = React.useMemo(
diff --git a/tests/Select.test.tsx b/tests/Select.test.tsx
index 361a55e6..e138d0b0 100644
--- a/tests/Select.test.tsx
+++ b/tests/Select.test.tsx
@@ -1947,7 +1947,44 @@ describe('Select.Basic', () => {
       'Communicated',
     );
   });
-
+  it('filterSort should work with search value when grouping',() => {
+    const { container } = render(
+      <Select
+       open
+      showSearch
+      searchValue="entry"
+      style={{ width: 100 }}
+      placeholder="Search to Select"
+      optionFilterProp="label"
+      filterSort={
+        (optionA, optionB, info) => {
+        if (!info.searchValue) return 0;
+        const labelA = (optionA?.label ?? '').toLowerCase();
+        const labelB = (optionB?.label ?? '').toLowerCase();
+        const matchA = labelA.startsWith(info.searchValue);
+        const matchB = labelB.startsWith(info.searchValue);
+        if (matchA && !matchB) return -1;
+        if (!matchA && matchB) return 1;
+        return labelA.localeCompare(labelB);
+      }}
+      options={[
+        {
+          value: 'group1',
+          label: 'group1',
+          options: [
+            { label: 'Entry1', value: 'Entry1' },
+            { label: 'Entry2', value: 'Entry2' },
+            { label: 'Entry3', value: 'Entry3' },
+            { label: 'Entry', value: 'Entry' },
+          ],
+        },
+      ]}
+      />,
+    );
+    expect(container.querySelector('.rc-select-item-option-grouped').textContent).toBe(
+      'Entry',
+    );
+  })
   it('correctly handles the `tabIndex` prop', () => {
     const { container } = render(<Select tabIndex={0} />);
     expect(container.querySelector('.rc-select').getAttribute('tabindex')).toBeFalsy();