diff --git a/src/BaseSelect/index.tsx b/src/BaseSelect/index.tsx
index a2a15e8c..82b199fb 100644
--- a/src/BaseSelect/index.tsx
+++ b/src/BaseSelect/index.tsx
@@ -454,8 +454,9 @@ const BaseSelect = React.forwardRef<BaseSelectRef, BaseSelectProps>((props, ref)
   };
 
   // Close will clean up single mode search text
+  // mode not in ['combobox', 'multiple', 'tags', undefined]
   React.useEffect(() => {
-    if (!mergedOpen && !multiple && mode !== 'combobox') {
+    if (!mergedOpen && !multiple && mode && mode !== 'combobox') {
       onInternalSearch('', false, false);
     }
   }, [mergedOpen]);
@@ -603,7 +604,7 @@ const BaseSelect = React.forwardRef<BaseSelectRef, BaseSelectProps>((props, ref)
       // `tags` mode should move `searchValue` into values
       if (mode === 'tags') {
         onSearch(mergedSearchValue, { source: 'submit' });
-      } else if (mode === 'multiple') {
+      } else if (!mode || mode === 'multiple') {
         // `multiple` mode only clean the search value but not trigger event
         onSearch('', {
           source: 'blur',
diff --git a/tests/Blur.test.tsx b/tests/Blur.test.tsx
new file mode 100644
index 00000000..522be6d9
--- /dev/null
+++ b/tests/Blur.test.tsx
@@ -0,0 +1,80 @@
+import type { OptionListProps, RefOptionListProps } from '@/OptionList';
+import { fireEvent, render } from '@testing-library/react';
+import { forwardRef } from 'react';
+import BaseSelect from '../src/BaseSelect';
+import Select, { Option } from '../src';
+
+const OptionList = forwardRef<RefOptionListProps, OptionListProps>(() => (
+  <div className="popup">Popup</div>
+));
+
+describe('Select.Blur', () => {
+  it('mode with undefined, onBlur source is blur', () => {
+    const onSearch = jest.fn();
+    const { container } = render(
+      <BaseSelect
+        prefixCls="rc-select"
+        id="test"
+        displayValues={[]}
+        onDisplayValuesChange={() => {}}
+        searchValue="1"
+        showSearch
+        onSearch={onSearch}
+        OptionList={OptionList}
+        emptyOptions
+      />,
+    );
+    expect(container.querySelector('div.rc-select')).toBeTruthy();
+    fireEvent.change(container.querySelector('input'), { target: { value: '2' } });
+    expect(onSearch).toHaveBeenCalledWith('2', { source: 'typing' });
+    fireEvent.blur(container.querySelector('div.rc-select'));
+    expect(onSearch).toHaveBeenCalledWith('', { source: 'blur' });
+  });
+
+  it('mode with multiple, onBlur source is blur', () => {
+    const onSearch = jest.fn();
+    const { container } = render(
+      <BaseSelect
+        prefixCls="rc-select"
+        mode="multiple"
+        id="test"
+        displayValues={[]}
+        onDisplayValuesChange={() => {}}
+        searchValue="1"
+        showSearch
+        onSearch={onSearch}
+        OptionList={OptionList}
+        emptyOptions
+      />,
+    );
+    expect(container.querySelector('div.rc-select')).toBeTruthy();
+    fireEvent.change(container.querySelector('input'), { target: { value: '2' } });
+    expect(onSearch).toHaveBeenCalledWith('2', { source: 'typing' });
+    fireEvent.blur(container.querySelector('div.rc-select'));
+    expect(onSearch).toHaveBeenCalledWith('', { source: 'blur' });
+  });
+
+  it('click item and blur should trigger onBlur but not trigger onSearch', () => {
+    const onSearch = jest.fn();
+    const onBlur = jest.fn();
+
+    const Demo = () => (
+      <Select onSearch={onSearch} showSearch onBlur={onBlur}>
+        <Option value="11">11</Option>
+        <Option value="22">22</Option>
+        <Option value="33">33</Option>
+      </Select>
+    );
+
+    const { container } = render(<Demo />);
+    const input = container.querySelector('input');
+    fireEvent.change(input, { target: { value: '1' } });
+    fireEvent.click(
+      container.querySelectorAll('.rc-select-dropdown .rc-select-item-option-content')[0],
+    );
+    fireEvent.blur(input);
+    expect(container.querySelector('.rc-select-dropdown-hidden')).toBeTruthy();
+    expect(onSearch).toHaveBeenCalledTimes(1);
+    expect(onBlur).toHaveBeenCalledTimes(1);
+  });
+});
diff --git a/tests/Select.test.tsx b/tests/Select.test.tsx
index a37330dd..bc77cd96 100644
--- a/tests/Select.test.tsx
+++ b/tests/Select.test.tsx
@@ -595,12 +595,12 @@ describe('Select.Basic', () => {
     selectItem(container);
     expect(handleSearch).toHaveBeenCalledTimes(1);
 
-    // Should trigger onBlur
+    // Should not trigger onBlur
     fireEvent.change(container.querySelector('input'), { target: { value: '3' } });
     expect(handleSearch).toHaveBeenCalledTimes(2);
     fireEvent.blur(container.querySelector('input'));
     jest.runAllTimers();
-    expect(handleSearch).toHaveBeenCalledTimes(3);
+    expect(handleSearch).toHaveBeenCalledTimes(2);
 
     jest.useRealTimers();
   });
diff --git a/tests/shared/inputFilterTest.tsx b/tests/shared/inputFilterTest.tsx
index a64f8a53..37ff6b5a 100644
--- a/tests/shared/inputFilterTest.tsx
+++ b/tests/shared/inputFilterTest.tsx
@@ -22,7 +22,8 @@ export default function inputFilterTest(mode: any) {
     expect(container.querySelector('.rc-select')).toHaveClass('rc-select-open');
     expect(container.querySelector('input')).toHaveValue('1');
     fireEvent.click(container.querySelector('.rc-select-item-option'));
-    expect(container.querySelector('input')).toHaveValue(mode === 'single' ? '' : '1');
+    const isMultiple = mode === 'multiple' || mode === 'tags';
+    expect(container.querySelector('input')).toHaveValue(!isMultiple ? '' : '1');
   });
 
   it('should clear input filter after select', () => {