diff --git a/src/PropTypes.js b/src/PropTypes.js
new file mode 100644
index 000000000..9317e2c81
--- /dev/null
+++ b/src/PropTypes.js
@@ -0,0 +1,66 @@
+import { PropTypes } from 'react';
+
+function valueType(props, propName, componentName) {
+  const labelInValueShape = PropTypes.shape({
+    key: PropTypes.string.isRequired,
+    label: PropTypes.string,
+  });
+  if (props.labelInValue) {
+    const validate = PropTypes.oneOfType([
+      PropTypes.arrayOf(labelInValueShape),
+      labelInValueShape,
+    ]);
+    const error = validate(...arguments);
+    if (error) {
+      return new Error(
+        `Invalid prop \`${propName}\` supplied to \`${componentName}\`, ` +
+        `when you set \`labelInValue\` to \`true\`, \`${propName}\` should in ` +
+        `shape of \`{ key: string, label?: string }\`.`
+      );
+    }
+  } else if (props.multiple && props[propName] === '') {
+    return new Error(
+      `Invalid prop \`${propName}\` of type \`string\` supplied to \`${componentName}\`, ` +
+      `expected \`array\` when \`multiple\` is \`true\`.`
+    );
+  } else {
+    const validate = PropTypes.oneOfType([
+      PropTypes.arrayOf(PropTypes.string),
+      PropTypes.string,
+    ]);
+    return validate(...arguments);
+  }
+}
+
+export const SelectPropTypes = {
+  defaultActiveFirstOption: PropTypes.bool,
+  multiple: PropTypes.bool,
+  filterOption: PropTypes.any,
+  children: PropTypes.any,
+  showSearch: PropTypes.bool,
+  disabled: PropTypes.bool,
+  allowClear: PropTypes.bool,
+  showArrow: PropTypes.bool,
+  tags: PropTypes.bool,
+  prefixCls: PropTypes.string,
+  className: PropTypes.string,
+  transitionName: PropTypes.string,
+  optionLabelProp: PropTypes.string,
+  optionFilterProp: PropTypes.string,
+  animation: PropTypes.string,
+  choiceTransitionName: PropTypes.string,
+  onChange: PropTypes.func,
+  onBlur: PropTypes.func,
+  onFocus: PropTypes.func,
+  onSelect: PropTypes.func,
+  onSearch: PropTypes.func,
+  placeholder: PropTypes.any,
+  onDeselect: PropTypes.func,
+  labelInValue: PropTypes.bool,
+  value: valueType,
+  defaultValue: valueType,
+  dropdownStyle: PropTypes.object,
+  maxTagTextLength: PropTypes.number,
+  tokenSeparators: PropTypes.arrayOf(PropTypes.string),
+  getInputElement: PropTypes.func,
+};
diff --git a/src/Select.jsx b/src/Select.jsx
index 2e936b481..d7a8eba78 100644
--- a/src/Select.jsx
+++ b/src/Select.jsx
@@ -1,4 +1,4 @@
-import React, { PropTypes } from 'react';
+import React from 'react';
 import ReactDOM from 'react-dom';
 import KeyCode from 'rc-util/lib/KeyCode';
 import classnames from 'classnames';
@@ -15,6 +15,7 @@ import {
 } from './util';
 import SelectTrigger from './SelectTrigger';
 import FilterMixin from './FilterMixin';
+import { SelectPropTypes } from './PropTypes';
 
 function noop() {
 }
@@ -27,57 +28,8 @@ function saveRef(name, component) {
   this[name] = component;
 }
 
-let valueObjectShape;
-
-if (PropTypes) {
-  valueObjectShape = PropTypes.oneOfType([
-    PropTypes.string,
-    PropTypes.shape({
-      key: PropTypes.string,
-      label: PropTypes.node,
-    }),
-  ]);
-}
-
 const Select = React.createClass({
-  propTypes: {
-    defaultActiveFirstOption: PropTypes.bool,
-    multiple: PropTypes.bool,
-    filterOption: PropTypes.any,
-    children: PropTypes.any,
-    showSearch: PropTypes.bool,
-    disabled: PropTypes.bool,
-    allowClear: PropTypes.bool,
-    showArrow: PropTypes.bool,
-    tags: PropTypes.bool,
-    prefixCls: PropTypes.string,
-    className: PropTypes.string,
-    transitionName: PropTypes.string,
-    optionLabelProp: PropTypes.string,
-    optionFilterProp: PropTypes.string,
-    animation: PropTypes.string,
-    choiceTransitionName: PropTypes.string,
-    onChange: PropTypes.func,
-    onBlur: PropTypes.func,
-    onFocus: PropTypes.func,
-    onSelect: PropTypes.func,
-    onSearch: PropTypes.func,
-    placeholder: PropTypes.any,
-    onDeselect: PropTypes.func,
-    labelInValue: PropTypes.bool,
-    value: PropTypes.oneOfType([
-      valueObjectShape,
-      PropTypes.arrayOf(valueObjectShape),
-    ]),
-    defaultValue: PropTypes.oneOfType([
-      valueObjectShape,
-      PropTypes.arrayOf(valueObjectShape),
-    ]),
-    dropdownStyle: PropTypes.object,
-    maxTagTextLength: PropTypes.number,
-    tokenSeparators: PropTypes.arrayOf(PropTypes.string),
-    getInputElement: PropTypes.func,
-  },
+  propTypes: SelectPropTypes,
 
   mixins: [FilterMixin],
 
@@ -91,7 +43,6 @@ const Select = React.createClass({
       showSearch: true,
       allowClear: false,
       placeholder: '',
-      defaultValue: [],
       onChange: noop,
       onFocus: noop,
       onBlur: noop,
diff --git a/tests/Select.spec.js b/tests/Select.spec.js
index f4a7b9078..7580f5963 100644
--- a/tests/Select.spec.js
+++ b/tests/Select.spec.js
@@ -441,4 +441,38 @@ describe('Select', () => {
     dropdownWrapper.find('MenuItem').first().simulate('click');
     expect(wrapper.state().inputValue).toBe('1');
   });
+
+  describe('propTypes', () => {
+    const spy = jest.spyOn(console, 'error').mockImplementation(() => {});
+
+    beforeEach(() => {
+      spy.mockReset();
+    });
+
+    afterAll(() => {
+      spy.mockRestore();
+    });
+
+    it('warns on invalid value when labelInValue', () => {
+      expect(() => {
+        mount(
+          <Select labelInValue value="foo" />
+        );
+      }).toThrow();
+      expect(spy.mock.calls[0][0]).toMatch(
+        'Invalid prop `value` supplied to `Select`, when you set `labelInValue` ' +
+        'to `true`, `value` should in shape of `{ key: string, label?: string }`'
+      );
+    });
+
+    it('warns on invalid value when multiple', () => {
+      mount(
+        <Select multiple value="" />
+      );
+      expect(spy.mock.calls[0][0]).toMatch(
+        'Invalid prop `value` of type `string` supplied to `Select`, ' +
+        'expected `array` when `multiple` is `true`'
+      );
+    });
+  });
 });