diff --git a/packages/components/tabs/__tests__/tabs.test.tsx b/packages/components/tabs/__tests__/tabs.test.tsx
index b2e42079d9..0be7a618b5 100644
--- a/packages/components/tabs/__tests__/tabs.test.tsx
+++ b/packages/components/tabs/__tests__/tabs.test.tsx
@@ -48,7 +48,7 @@ describe('Tabs.vue', () => {
       activeName.value = tab.paneName
     }
     const wrapper = mount(() => (
-      <Tabs v-model={activeName.value} onTab-click={handleClick}>
+      <Tabs v-model={activeName.value} onTabClick={handleClick}>
         <TabPane name="a" label="label-1">
           A
         </TabPane>
@@ -308,8 +308,8 @@ describe('Tabs.vue', () => {
         type="card"
         addable
         closable
-        onTab-add={addTab}
-        onTab-remove={removeTab}
+        onTabAdd={addTab}
+        onTabRemove={removeTab}
       >
         {editableTabs.value.map((item) => (
           <TabPane
@@ -646,7 +646,7 @@ describe('Tabs.vue', () => {
       activeName.value = tab.paneName
     }
     const wrapper = mount(() => (
-      <Tabs v-model={activeName.value} onTab-click={handleClick}>
+      <Tabs v-model={activeName.value} onTabClick={handleClick}>
         <TabPane name={0} label="label-1">
           A
         </TabPane>
@@ -678,7 +678,7 @@ describe('Tabs.vue', () => {
       activeName.value = tab.paneName
     }
     const wrapper = mount(() => (
-      <Tabs v-model={activeName.value} onTab-click={handleClick}>
+      <Tabs v-model={activeName.value} onTabClick={handleClick}>
         <TabPane name={0} label="n-0">
           number-0
         </TabPane>
diff --git a/packages/components/tabs/src/tab-bar.vue b/packages/components/tabs/src/tab-bar.vue
index 80c07515bd..145309ae1d 100644
--- a/packages/components/tabs/src/tab-bar.vue
+++ b/packages/components/tabs/src/tab-bar.vue
@@ -5,8 +5,8 @@
     :style="barStyle"
   />
 </template>
+
 <script lang="ts" setup>
-// @ts-nocheck
 import { getCurrentInstance, inject, nextTick, ref, watch } from 'vue'
 import { useResizeObserver } from '@vueuse/core'
 import { capitalize, throwError } from '@element-plus/utils'
diff --git a/packages/components/tabs/src/tab-nav.tsx b/packages/components/tabs/src/tab-nav.tsx
index eac2a73126..a39917eede 100644
--- a/packages/components/tabs/src/tab-nav.tsx
+++ b/packages/components/tabs/src/tab-nav.tsx
@@ -1,4 +1,3 @@
-// @ts-nocheck
 import {
   computed,
   defineComponent,
@@ -10,7 +9,6 @@ import {
   ref,
   watch,
 } from 'vue'
-import { NOOP } from '@vue/shared'
 import {
   useDocumentVisibility,
   useResizeObserver,
@@ -48,16 +46,6 @@ export const tabNavProps = buildProps({
     default: '',
   },
   editable: Boolean,
-  onTabClick: {
-    type: definePropType<
-      (tab: TabsPaneContext, tabName: TabPanelName, ev: Event) => void
-    >(Function),
-    default: NOOP,
-  },
-  onTabRemove: {
-    type: definePropType<(tab: TabsPaneContext, ev: Event) => void>(Function),
-    default: NOOP,
-  },
   type: {
     type: String,
     values: ['card', 'border-card', ''],
@@ -66,14 +54,21 @@ export const tabNavProps = buildProps({
   stretch: Boolean,
 } as const)
 
+export const tabNavEmits = {
+  tabClick: (tab: TabsPaneContext, tabName: TabPanelName, ev: Event) =>
+    ev instanceof Event,
+  tabRemove: (tab: TabsPaneContext, ev: Event) => ev instanceof Event,
+}
+
 export type TabNavProps = ExtractPropTypes<typeof tabNavProps>
+export type TabNavEmits = typeof tabNavEmits
 
 const COMPONENT_NAME = 'ElTabNav'
 const TabNav = defineComponent({
   name: COMPONENT_NAME,
   props: tabNavProps,
-
-  setup(props, { expose }) {
+  emits: tabNavEmits,
+  setup(props, { expose, emit }) {
     const vm = getCurrentInstance()!
 
     const rootTabs = inject(tabsRootContextKey)
@@ -320,7 +315,7 @@ const TabNav = defineComponent({
             // `onClick` not exist when generate dts
             // eslint-disable-next-line @typescript-eslint/ban-ts-comment
             // @ts-ignore
-            onClick={(ev: MouseEvent) => props.onTabRemove(pane, ev)}
+            onClick={(ev: MouseEvent) => emit('tabRemove', pane, ev)}
           >
             <Close />
           </ElIcon>
@@ -350,7 +345,7 @@ const TabNav = defineComponent({
             onBlur={() => removeFocus()}
             onClick={(ev: MouseEvent) => {
               removeFocus()
-              props.onTabClick(pane, tabName, ev)
+              emit('tabClick', pane, tabName, ev)
             }}
             onKeydown={(ev: KeyboardEvent) => {
               if (
@@ -358,7 +353,7 @@ const TabNav = defineComponent({
                 (ev.code === EVENT_CODE.delete ||
                   ev.code === EVENT_CODE.backspace)
               ) {
-                props.onTabRemove(pane, ev)
+                emit('tabRemove', pane, ev)
               }
             }}
           >
diff --git a/packages/components/tabs/src/tab-pane.vue b/packages/components/tabs/src/tab-pane.vue
index 751b040865..bb370dbab1 100644
--- a/packages/components/tabs/src/tab-pane.vue
+++ b/packages/components/tabs/src/tab-pane.vue
@@ -11,6 +11,7 @@
     <slot />
   </div>
 </template>
+
 <script lang="ts" setup>
 import {
   computed,
diff --git a/packages/components/tabs/src/tabs.tsx b/packages/components/tabs/src/tabs.tsx
index 6545f84bfe..17a1eefbbb 100644
--- a/packages/components/tabs/src/tabs.tsx
+++ b/packages/components/tabs/src/tabs.tsx
@@ -67,12 +67,12 @@ const isPanelName = (value: unknown): value is string | number =>
 
 export const tabsEmits = {
   [UPDATE_MODEL_EVENT]: (name: TabPanelName) => isPanelName(name),
-  'tab-click': (pane: TabsPaneContext, ev: Event) => ev instanceof Event,
-  'tab-change': (name: TabPanelName) => isPanelName(name),
+  tabClick: (pane: TabsPaneContext, ev: Event) => ev instanceof Event,
+  tabChange: (name: TabPanelName) => isPanelName(name),
   edit: (paneName: TabPanelName | undefined, action: 'remove' | 'add') =>
     ['remove', 'add'].includes(action),
-  'tab-remove': (name: TabPanelName) => isPanelName(name),
-  'tab-add': () => true,
+  tabRemove: (name: TabPanelName) => isPanelName(name),
+  tabAdd: () => true,
 }
 export type TabsEmits = typeof tabsEmits
 
@@ -94,7 +94,7 @@ export default defineComponent({
     const changeCurrentName = (value: TabPanelName) => {
       currentName.value = value
       emit(UPDATE_MODEL_EVENT, value)
-      emit('tab-change', value)
+      emit('tabChange', value)
     }
 
     const setCurrentName = async (value?: TabPanelName) => {
@@ -121,19 +121,19 @@ export default defineComponent({
     ) => {
       if (tab.props.disabled) return
       setCurrentName(tabName)
-      emit('tab-click', tab, event)
+      emit('tabClick', tab, event)
     }
 
     const handleTabRemove = (pane: TabsPaneContext, ev: Event) => {
       if (pane.props.disabled || isUndefined(pane.props.name)) return
       ev.stopPropagation()
       emit('edit', pane.props.name, 'remove')
-      emit('tab-remove', pane.props.name)
+      emit('tabRemove', pane.props.name)
     }
 
     const handleTabAdd = () => {
       emit('edit', undefined, 'add')
-      emit('tab-add')
+      emit('tabAdd')
     }
 
     useDeprecated(
diff --git a/packages/utils/__tests__/strings.test.ts b/packages/utils/__tests__/strings.test.ts
index 77929a7d2a..665454deba 100644
--- a/packages/utils/__tests__/strings.test.ts
+++ b/packages/utils/__tests__/strings.test.ts
@@ -16,9 +16,14 @@ describe('strings', () => {
     )
   })
 
+  it('capitalize', () => {
+    ;['capitalize', 'camelize', 'hyphenate'].forEach((item) => {
+      expect(capitalize(item)).toBe(vueShared.capitalize(item))
+    })
+  })
+
   it('re-export from @vue/shared', () => {
     expect(camelize).toBe(vueShared.camelize)
-    expect(capitalize).toBe(vueShared.capitalize)
     expect(hyphenate).toBe(vueShared.hyphenate)
     expect(kebabCase).toBe(vueShared.hyphenate)
   })
diff --git a/packages/utils/strings.ts b/packages/utils/strings.ts
index 28d3d25f58..61c7700967 100644
--- a/packages/utils/strings.ts
+++ b/packages/utils/strings.ts
@@ -1,6 +1,6 @@
+import { capitalize as toCapitalize } from '@vue/shared'
 export {
   camelize,
-  capitalize,
   hyphenate,
   hyphenate as kebabCase, // alias
 } from '@vue/shared'
@@ -10,3 +10,7 @@ export {
  */
 export const escapeStringRegexp = (string = '') =>
   string.replace(/[|\\{}()[\]^$+*?.]/g, '\\$&').replace(/-/g, '\\x2d')
+
+// NOTE: improve capitalize types. Restore previous code after the [PR](https://github.com/vuejs/core/pull/6212) merge
+export const capitalize = <T extends string>(str: T) =>
+  toCapitalize(str) as Capitalize<T>