diff --git a/src/mention/tests/Mention.spec.ts b/src/mention/tests/Mention.spec.ts
new file mode 100644
index 000000000..2fb8c5642
--- /dev/null
+++ b/src/mention/tests/Mention.spec.ts
@@ -0,0 +1,189 @@
+import { mount } from '@vue/test-utils'
+import { sleep } from 'seemly'
+import { h } from 'vue'
+import { NIcon } from '../../icon'
+import { NMention } from '../index'
+
+describe('n-mention', () => {
+  const options = [
+    {
+      label: '07akioni',
+      value: '07akioni'
+    },
+    {
+      label: 'star-kirby',
+      value: 'star-kirby'
+    },
+    {
+      label: '广东路',
+      value: '广东路'
+    },
+    {
+      label: (option: any) =>
+        h('span', null, [
+          h(NIcon, { style: 'margin-right: 5px' }, { default: () => 'test' }),
+          option.value
+        ]),
+      value: '颐和园路5号'
+    }
+  ]
+  it('should work with import on demand', () => {
+    mount(NMention)
+  })
+
+  it('should work with `options` prop', async () => {
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options }
+    })
+
+    wrapper.find('input').element.focus()
+    await wrapper.find('input').setValue('@')
+    await sleep(150)
+    expect(document.querySelector('.n-mention-menu')).not.toEqual(null)
+    expect(document.querySelectorAll('.n-base-select-option').length).toBe(4)
+  })
+
+  it('should work with `autosize` prop', async () => {
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options, autosize: true }
+    })
+
+    expect(wrapper.find('.n-input').classes()).toContain('n-input--autosize')
+  })
+
+  it('should work with `type` prop', async () => {
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options }
+    })
+
+    expect(wrapper.find('.n-input').classes()).not.toContain(
+      'n-input--textarea'
+    )
+    expect(wrapper.find('input').exists()).toBe(true)
+
+    await wrapper.setProps({ type: 'textarea' })
+    expect(wrapper.find('.n-input').classes()).toContain('n-input--textarea')
+    expect(wrapper.find('textarea').exists()).toBe(true)
+  })
+
+  it('should work with `bordered` prop', async () => {
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options }
+    })
+
+    expect(wrapper.find('.n-input__border').exists()).toBe(true)
+    expect(wrapper.find('.n-input__state-border').exists()).toBe(true)
+
+    await wrapper.setProps({ bordered: false })
+    expect(wrapper.find('.n-input__border').exists()).not.toBe(true)
+    expect(wrapper.find('.n-input__state-border').exists()).not.toBe(true)
+  })
+
+  it('should work with `disabled` prop', async () => {
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options }
+    })
+
+    expect(wrapper.find('.n-input').classes()).not.toContain(
+      'n-input--disabled'
+    )
+
+    await wrapper.setProps({ disabled: true })
+    expect(wrapper.find('.n-input').classes()).toContain('n-input--disabled')
+  })
+
+  it('should work with `loading` prop', async () => {
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options, loading: true }
+    })
+
+    wrapper.find('input').element.focus()
+    await wrapper.find('input').setValue('@')
+    await sleep(150)
+    expect(document.querySelector('.n-base-select-menu__loading')).not.toEqual(
+      null
+    )
+  })
+
+  it('should work with `loading` prop', async () => {
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options, loading: true }
+    })
+
+    wrapper.find('input').element.focus()
+    await wrapper.find('input').setValue('@')
+    await sleep(150)
+    expect(document.querySelector('.n-base-select-menu__loading')).not.toEqual(
+      null
+    )
+  })
+
+  it('should work with `prefix` prop', async () => {
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options, prefix: '#' }
+    })
+
+    wrapper.find('input').element.focus()
+    await wrapper.find('input').setValue('#')
+    await sleep(150)
+    expect(document.querySelector('.n-mention-menu')).not.toEqual(null)
+    expect(document.querySelectorAll('.n-base-select-option').length).toBe(4)
+  })
+
+  it('should work with `on-update:value` prop', async () => {
+    const onUpdate = jest.fn()
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options, 'on-update:value': onUpdate }
+    })
+
+    wrapper.find('input').element.focus()
+    await wrapper.find('input').setValue('@')
+    await sleep(150)
+    expect(onUpdate).toHaveBeenCalled()
+  })
+
+  it('should work with `on-focus` prop', async () => {
+    const onFocus = jest.fn()
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options, 'on-focus': onFocus }
+    })
+
+    wrapper.find('input').element.focus()
+    expect(onFocus).toHaveBeenCalled()
+  })
+
+  it('should work with `on-search` prop', async () => {
+    const onSearch = jest.fn()
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options, 'on-search': onSearch }
+    })
+
+    wrapper.find('input').element.focus()
+    await wrapper.find('input').setValue('@')
+    await sleep(150)
+    expect(onSearch).toHaveBeenCalled()
+  })
+
+  it('should work with `on-blur` prop', async () => {
+    const onBlur = jest.fn()
+    const wrapper = mount(NMention, {
+      attachTo: document.body,
+      props: { options: options, 'on-blur': onBlur }
+    })
+
+    await wrapper.find('input').element.focus()
+    await wrapper.find('input').element.blur()
+    expect(onBlur).toHaveBeenCalled()
+  })
+})