diff --git a/packages/components/button/__tests__/button.spec.ts b/packages/components/button/__tests__/button.spec.tsx
similarity index 77%
rename from packages/components/button/__tests__/button.spec.ts
rename to packages/components/button/__tests__/button.spec.tsx
index 6d6a891285..0b5efd5e47 100644
--- a/packages/components/button/__tests__/button.spec.ts
+++ b/packages/components/button/__tests__/button.spec.tsx
@@ -1,8 +1,9 @@
-import { ref, h, nextTick, defineComponent } from 'vue'
+import { ref, nextTick, defineComponent } from 'vue'
 import { mount } from '@vue/test-utils'
 import { Loading, Search } from '@element-plus/icons-vue'
 import Button from '../src/button.vue'
 import ButtonGroup from '../src/button-group.vue'
+import type { ComponentSize } from '@element-plus/constants'
 
 const AXIOM = 'Rem is the best girl'
 
@@ -83,7 +84,7 @@ describe('Button.vue', () => {
         default: '<span class="inner-slot"></span>',
       },
     })
-    await (<HTMLElement>wrapper.element.querySelector('.inner-slot')).click()
+    wrapper.element.querySelector<HTMLElement>('.inner-slot')!.click()
     expect(wrapper.emitted()).toBeDefined()
   })
 
@@ -119,25 +120,15 @@ describe('Button.vue', () => {
 
   it('loading slot', () => {
     const App = defineComponent({
-      setup() {
-        return () =>
-          h(
-            Button,
-            {
-              loading: true,
-            },
-            {
-              default: 'Loading',
-              loading: h(
-                'span',
-                {
-                  class: 'custom-loading',
-                },
-                ['111']
-              ),
-            }
-          )
-      },
+      setup: () => () =>
+        (
+          <Button
+            v-slots={{ loading: <span class="custom-loading">111</span> }}
+            loading={true}
+          >
+            Loading
+          </Button>
+        ),
     })
     const wrapper = mount(App)
     expect(wrapper.find('.custom-loading').exists()).toBeTruthy()
@@ -146,30 +137,28 @@ describe('Button.vue', () => {
 describe('Button Group', () => {
   it('create', () => {
     const wrapper = mount({
-      template: `
-        <el-button-group>
-        <el-button type="primary">Prev</el-button>
-        <el-button type="primary">Next</el-button>
-        </el-button-group>`,
-      components: {
-        'el-button-group': ButtonGroup,
-        'el-button': Button,
-      },
+      setup: () => () =>
+        (
+          <ButtonGroup>
+            <Button type="primary">Prev</Button>
+            <Button type="primary">Next</Button>
+          </ButtonGroup>
+        ),
     })
     expect(wrapper.classes()).toContain('el-button-group')
     expect(wrapper.findAll('button').length).toBe(2)
   })
 
   it('button group reactive size', async () => {
-    const size = ref('small')
+    const size = ref<ComponentSize>('small')
     const wrapper = mount({
-      setup() {
-        return () =>
-          h(ButtonGroup, { size: size.value }, () => [
-            h(Button, { type: 'primary' }, () => 'Prev'),
-            h(Button, { type: 'primary' }, () => 'Next'),
-          ])
-      },
+      setup: () => () =>
+        (
+          <ButtonGroup size={size.value}>
+            <Button type="primary">Prev</Button>
+            <Button type="primary">Next</Button>
+          </ButtonGroup>
+        ),
     })
     expect(wrapper.classes()).toContain('el-button-group')
     expect(
@@ -186,13 +175,13 @@ describe('Button Group', () => {
 
   it('button group type', async () => {
     const wrapper = mount({
-      setup() {
-        return () =>
-          h(ButtonGroup, { type: 'warning' }, () => [
-            h(Button, { type: 'primary' }, () => 'Prev'),
-            h(Button, {}, () => 'Next'),
-          ])
-      },
+      setup: () => () =>
+        (
+          <ButtonGroup type="warning">
+            <Button type="primary">Prev</Button>
+            <Button>Next</Button>
+          </ButtonGroup>
+        ),
     })
     expect(wrapper.classes()).toContain('el-button-group')
     expect(
diff --git a/packages/components/button/src/button.ts b/packages/components/button/src/button.ts
index e0f11d011c..36459fa7c8 100644
--- a/packages/components/button/src/button.ts
+++ b/packages/components/button/src/button.ts
@@ -4,7 +4,7 @@ import { Loading } from '@element-plus/icons-vue'
 import type { ExtractPropTypes } from 'vue'
 import type button from './button.vue'
 
-export const buttonType = [
+export const buttonTypes = [
   'default',
   'primary',
   'success',
@@ -14,14 +14,14 @@ export const buttonType = [
   'text',
   '',
 ] as const
-export const buttonNativeType = ['button', 'submit', 'reset'] as const
+export const buttonNativeTypes = ['button', 'submit', 'reset'] as const
 
 export const buttonProps = buildProps({
   size: useSizeProp,
   disabled: Boolean,
   type: {
     type: String,
-    values: buttonType,
+    values: buttonTypes,
     default: '',
   },
   icon: {
@@ -30,7 +30,7 @@ export const buttonProps = buildProps({
   },
   nativeType: {
     type: String,
-    values: buttonNativeType,
+    values: buttonNativeTypes,
     default: 'button',
   },
   loading: Boolean,
@@ -48,11 +48,6 @@ export const buttonProps = buildProps({
     default: undefined,
   },
 } as const)
-
-export interface ButtonConfigContext {
-  autoInsertSpace?: boolean
-}
-
 export const buttonEmits = {
   click: (evt: MouseEvent) => evt instanceof MouseEvent,
 }
@@ -64,3 +59,7 @@ export type ButtonType = ButtonProps['type']
 export type ButtonNativeType = ButtonProps['nativeType']
 
 export type ButtonInstance = InstanceType<typeof button>
+
+export interface ButtonConfigContext {
+  autoInsertSpace?: boolean
+}
diff --git a/packages/components/button/src/button.vue b/packages/components/button/src/button.vue
index 951371d9f8..93df913652 100644
--- a/packages/components/button/src/button.vue
+++ b/packages/components/button/src/button.vue
@@ -1,17 +1,17 @@
 <template>
   <button
-    ref="buttonRef"
+    ref="_ref"
     :class="[
       ns.b(),
-      ns.m(buttonType),
-      ns.m(buttonSize),
-      ns.is('disabled', buttonDisabled),
+      ns.m(_type),
+      ns.m(_size),
+      ns.is('disabled', _disabled),
       ns.is('loading', loading),
       ns.is('plain', plain),
       ns.is('round', round),
       ns.is('circle', circle),
     ]"
-    :disabled="buttonDisabled || loading"
+    :disabled="_disabled || loading"
     :autofocus="autofocus"
     :type="nativeType"
     :style="buttonStyle"
@@ -35,8 +35,8 @@
   </button>
 </template>
 
-<script lang="ts">
-import { computed, inject, defineComponent, Text, ref } from 'vue'
+<script lang="ts" setup>
+import { computed, inject, Text, ref, useSlots } from 'vue'
 import { useCssVar } from '@vueuse/core'
 import { TinyColor } from '@ctrl/tinycolor'
 import { ElIcon } from '@element-plus/components/icon'
@@ -48,120 +48,102 @@ import {
   useSize,
 } from '@element-plus/hooks'
 import { buttonGroupContextKey } from '@element-plus/tokens'
-import { Loading } from '@element-plus/icons-vue'
-
 import { buttonEmits, buttonProps } from './button'
 
-export default defineComponent({
+defineOptions({
   name: 'ElButton',
+})
 
-  components: {
-    ElIcon,
-    Loading,
-  },
+const props = defineProps(buttonProps)
+const emit = defineEmits(buttonEmits)
+const slots = useSlots()
 
-  props: buttonProps,
-  emits: buttonEmits,
+const buttonGroupContext = inject(buttonGroupContextKey, undefined)
+const globalConfig = useGlobalConfig('button')
+const ns = useNamespace('button')
+const { form } = useFormItem()
+const _size = useSize(computed(() => buttonGroupContext?.size))
+const _disabled = useDisabled()
+const _ref = ref<HTMLButtonElement>()
 
-  setup(props, { emit, slots }) {
-    const buttonRef = ref()
-    const buttonGroupContext = inject(buttonGroupContextKey, undefined)
-    const globalConfig = useGlobalConfig('button')
-    const ns = useNamespace('button')
-    const autoInsertSpace = computed(
-      () =>
-        props.autoInsertSpace ?? globalConfig.value?.autoInsertSpace ?? false
-    )
+const _type = computed(() => props.type || buttonGroupContext?.type || '')
+const autoInsertSpace = computed(
+  () => props.autoInsertSpace ?? globalConfig.value?.autoInsertSpace ?? false
+)
 
-    // add space between two characters in Chinese
-    const shouldAddSpace = computed(() => {
-      const defaultSlot = slots.default?.()
-      if (autoInsertSpace.value && defaultSlot?.length === 1) {
-        const slot = defaultSlot[0]
-        if (slot?.type === Text) {
-          const text = slot.children
-          return /^\p{Unified_Ideograph}{2}$/u.test(text as string)
-        }
+// add space between two characters in Chinese
+const shouldAddSpace = computed(() => {
+  const defaultSlot = slots.default?.()
+  if (autoInsertSpace.value && defaultSlot?.length === 1) {
+    const slot = defaultSlot[0]
+    if (slot?.type === Text) {
+      const text = slot.children
+      return /^\p{Unified_Ideograph}{2}$/u.test(text as string)
+    }
+  }
+  return false
+})
+
+// calculate hover & active color by color
+const typeColor = computed(() => useCssVar(`--el-color-${props.type}`).value)
+const buttonStyle = computed(() => {
+  let styles: Record<string, string> = {}
+
+  const buttonColor = props.color || typeColor.value
+
+  if (buttonColor) {
+    const color = new TinyColor(buttonColor)
+    const shadeBgColor = color.shade(10).toString()
+    if (props.plain) {
+      styles = {
+        '--el-button-bg-color': color.tint(90).toString(),
+        '--el-button-text-color': buttonColor,
+        '--el-button-hover-text-color': 'var(--el-color-white)',
+        '--el-button-hover-bg-color': buttonColor,
+        '--el-button-hover-border-color': buttonColor,
+        '--el-button-active-bg-color': shadeBgColor,
+        '--el-button-active-text-color': 'var(--el-color-white)',
+        '--el-button-active-border-color': shadeBgColor,
       }
-      return false
-    })
-
-    const { form } = useFormItem()
-    const buttonSize = useSize(computed(() => buttonGroupContext?.size))
-    const buttonDisabled = useDisabled()
-    const buttonType = computed(
-      () => props.type || buttonGroupContext?.type || ''
-    )
-
-    // calculate hover & active color by color
-    const typeColor = computed(
-      () => useCssVar(`--el-color-${props.type}`).value
-    )
-    const buttonStyle = computed(() => {
-      let styles = {}
-
-      const buttonColor = props.color || typeColor.value
-
-      if (buttonColor) {
-        const shadeBgColor = new TinyColor(buttonColor).shade(10).toString()
-        if (props.plain) {
-          styles = {
-            '--el-button-bg-color': new TinyColor(buttonColor)
-              .tint(90)
-              .toString(),
-            '--el-button-text-color': buttonColor,
-            '--el-button-hover-text-color': 'var(--el-color-white)',
-            '--el-button-hover-bg-color': buttonColor,
-            '--el-button-hover-border-color': buttonColor,
-            '--el-button-active-bg-color': shadeBgColor,
-            '--el-button-active-text-color': 'var(--el-color-white)',
-            '--el-button-active-border-color': shadeBgColor,
-          }
-        } else {
-          const tintBgColor = new TinyColor(buttonColor).tint(20).toString()
-          styles = {
-            '--el-button-bg-color': buttonColor,
-            '--el-button-border-color': buttonColor,
-            '--el-button-hover-bg-color': tintBgColor,
-            '--el-button-hover-border-color': tintBgColor,
-            '--el-button-active-bg-color': shadeBgColor,
-            '--el-button-active-border-color': shadeBgColor,
-          }
-        }
-
-        if (buttonDisabled.value) {
-          const disabledButtonColor = new TinyColor(buttonColor)
-            .tint(50)
-            .toString()
-          styles['--el-button-disabled-bg-color'] = disabledButtonColor
-          styles['--el-button-disabled-border-color'] = disabledButtonColor
-        }
+    } else {
+      const tintBgColor = color.tint(20).toString()
+      styles = {
+        '--el-button-bg-color': buttonColor,
+        '--el-button-border-color': buttonColor,
+        '--el-button-hover-bg-color': tintBgColor,
+        '--el-button-hover-border-color': tintBgColor,
+        '--el-button-active-bg-color': shadeBgColor,
+        '--el-button-active-border-color': shadeBgColor,
       }
-
-      return styles
-    })
-
-    const handleClick = (evt: MouseEvent) => {
-      if (props.nativeType === 'reset') {
-        form?.resetFields()
-      }
-      emit('click', evt)
     }
 
-    return {
-      buttonRef,
-      buttonStyle,
-
-      buttonSize,
-      buttonType,
-      buttonDisabled,
-
-      shouldAddSpace,
-
-      handleClick,
-
-      ns,
+    if (_disabled.value) {
+      const disabledButtonColor = color.tint(50).toString()
+      styles['--el-button-disabled-bg-color'] = disabledButtonColor
+      styles['--el-button-disabled-border-color'] = disabledButtonColor
     }
-  },
+  }
+
+  return styles
+})
+
+const handleClick = (evt: MouseEvent) => {
+  if (props.nativeType === 'reset') {
+    form?.resetFields()
+  }
+  emit('click', evt)
+}
+
+defineExpose({
+  /** @description button html element */
+  ref: _ref,
+  /** @description button size */
+  size: _size,
+  /** @description button type */
+  type: _type,
+  /** @description button disabled */
+  disabled: _disabled,
+  /** @description whether adding space */
+  shouldAddSpace,
 })
 </script>
diff --git a/packages/components/popconfirm/src/popconfirm.ts b/packages/components/popconfirm/src/popconfirm.ts
index dc1649b646..b894dbd325 100644
--- a/packages/components/popconfirm/src/popconfirm.ts
+++ b/packages/components/popconfirm/src/popconfirm.ts
@@ -1,4 +1,4 @@
-import { buttonType } from '@element-plus/components/button'
+import { buttonTypes } from '@element-plus/components/button'
 import { QuestionFilled } from '@element-plus/icons-vue'
 import { buildProps, definePropType, iconPropType } from '@element-plus/utils'
 import { useTooltipContentProps } from '@element-plus/components/tooltip'
@@ -16,12 +16,12 @@ export const popconfirmProps = buildProps({
   },
   confirmButtonType: {
     type: String,
-    values: buttonType,
+    values: buttonTypes,
     default: 'primary',
   },
   cancelButtonType: {
     type: String,
-    values: buttonType,
+    values: buttonTypes,
     default: 'text',
   },
   icon: {
diff --git a/packages/hooks/__tests__/use-form-item.spec.ts b/packages/hooks/__tests__/use-form-item.spec.ts
index d987254471..fd2997df3e 100644
--- a/packages/hooks/__tests__/use-form-item.spec.ts
+++ b/packages/hooks/__tests__/use-form-item.spec.ts
@@ -34,17 +34,10 @@ const mountComponent = (setup = NOOP, options = {}) => {
   )
 }
 
-const getButtonVm = (wrapper: ReturnType<typeof mountComponent>) => {
-  return wrapper.findComponent(ElButton).vm as any as {
-    buttonSize: string
-    buttonDisabled: boolean
-  }
-}
-
 describe('use-form-item', () => {
   it('should return local value', () => {
     const wrapper = mountComponent()
-    expect(getButtonVm(wrapper).buttonSize).toBe('default')
+    expect(wrapper.find('.el-button--default').exists()).toBe(true)
   })
 
   it('should return props.size instead of injected.size', () => {
@@ -62,7 +55,7 @@ describe('use-form-item', () => {
       }
     )
 
-    expect(getButtonVm(wrapper).buttonSize).toBe(propSize)
+    expect(wrapper.find(`.el-button--${propSize}`).exists()).toBe(true)
   })
 
   it('should return fallback.size instead inject.size', () => {
@@ -77,7 +70,7 @@ describe('use-form-item', () => {
       } as ElFormItemContext)
     })
 
-    expect(getButtonVm(wrapper).buttonSize).toBe(fallbackSize)
+    expect(wrapper.find(`.el-button--${fallbackSize}`).exists()).toBe(true)
   })
 
   it('should return formItem.size instead form.size', () => {
@@ -92,6 +85,6 @@ describe('use-form-item', () => {
       } as ElFormContext)
     })
 
-    expect(getButtonVm(wrapper).buttonSize).toBe(itemSize)
+    expect(wrapper.find(`.el-button--${itemSize}`).exists()).toBe(true)
   })
 })