diff --git a/examples/sites/demos/apis/tabs.js b/examples/sites/demos/apis/tabs.js
index cc83491bf..7a94cccdf 100644
--- a/examples/sites/demos/apis/tabs.js
+++ b/examples/sites/demos/apis/tabs.js
@@ -7,7 +7,7 @@ export default {
       props: [
         {
           name: 'active-color',
-          type: 'String',
+          type: 'string',
           defaultValue: '',
           desc: {
             'zh-CN': '当前页签的字体颜色',
@@ -237,7 +237,7 @@ export default {
         },
         {
           name: 'v-model',
-          type: 'String',
+          type: 'string',
           defaultValue: '',
           desc: {
             'zh-CN': '绑定值，选中选项卡的 name',
@@ -248,7 +248,7 @@ export default {
         },
         {
           name: 'v-model / modelValue',
-          type: 'String',
+          type: 'string',
           defaultValue: '',
           desc: {
             'zh-CN': '选中选项卡的 name',
@@ -284,8 +284,8 @@ export default {
           mfDemo: ''
         },
         {
-          name: 'beforeClose',
-          type: 'Function',
+          name: 'before-close',
+          type: '(name: string)=> boolean | Promise<boolean>',
           defaultValue: '',
           desc: {
             'zh-CN': '关闭页签前的回调函数，入参为页签名。如果函数返回false 或 拒绝的Promise，则不关闭页签',
@@ -296,6 +296,18 @@ export default {
           pcDemo: 'tabs-events-close',
           mfDemo: ''
         },
+        {
+          name: 'more-show-all',
+          type: 'boolean',
+          defaultValue: 'false',
+          desc: {
+            'zh-CN': `'更多'按钮触发的下拉面板是否展示全部页签项，适用于超大数据量的情况`,
+            'en-US':
+              'Indicates whether to display all tab items in the drop-down panel triggered by the More button. This parameter applies to the scenario where the data volume is large.'
+          },
+          mode: ['pc'],
+          pcDemo: 'more-show-all'
+        },
         {
           name: 'overflow-title',
           type: 'boolean',
@@ -309,9 +321,32 @@ export default {
           pcDemo: 'overflow-title',
           mfDemo: ''
         },
+        {
+          name: 'panel-max-height',
+          type: 'string',
+          defaultValue: '',
+          desc: {
+            'zh-CN': `'更多'按钮触发的下拉面板最大高度，超出则显示滚动条，适用于超大数据量的情况`,
+            'en-US':
+              'Maximum height of the drop-down panel triggered by the More button. If the height is exceeded, a scroll bar is displayed. This applies to the scenario where the data volume is large'
+          },
+          mode: ['pc'],
+          pcDemo: 'more-show-all'
+        },
+        {
+          name: 'panel-width',
+          type: 'string',
+          defaultValue: '',
+          desc: {
+            'zh-CN': `'更多'按钮触发的下拉面板的宽度`,
+            'en-US': 'Width of the drop-down panel triggered by the More button'
+          },
+          mode: ['pc'],
+          pcDemo: 'more-show-all'
+        },
         {
           name: 'title-width',
-          type: 'String',
+          type: 'string',
           defaultValue: '256px',
           desc: {
             'zh-CN': '当 overflow-title 为 true 时，指定页签标题的最大宽度',
diff --git a/examples/sites/demos/pc/app/tabs/custom-more-icon-composition-api.vue b/examples/sites/demos/pc/app/tabs/custom-more-icon-composition-api.vue
index 2750a38dc..c9f3f768d 100644
--- a/examples/sites/demos/pc/app/tabs/custom-more-icon-composition-api.vue
+++ b/examples/sites/demos/pc/app/tabs/custom-more-icon-composition-api.vue
@@ -10,52 +10,20 @@
 </template>
 
 <script setup lang="jsx">
-import { ref } from 'vue'
+import { reactive } from 'vue'
 import { Tabs as TinyTabs, TabItem as TinyTabItem } from '@opentiny/vue'
 import { iconPopup } from '@opentiny/vue-icon'
 
-const Tabs = ref([
-  {
-    title: 'Tab 1',
-    name: '1',
-    content: 'Tab 1 content '
-  },
-  {
-    title: 'Tab 2',
-    name: '2',
-    content: 'Tab 2 content'
-  },
-  {
-    title: 'Tab 3',
-    name: '3',
-    content: 'Tab 3 content'
-  },
-  {
-    title: 'Tab 4',
-    name: '4',
-    content: 'Tab 4 content'
-  },
-  {
-    title: 'Tab 5',
-    name: '5',
-    content: 'Tab 5 content'
-  },
-  {
-    title: 'Tab 6',
-    name: '6',
-    content: 'Tab 6 content'
-  },
-  {
-    title: 'Tab 7',
-    name: '7',
-    content: 'Tab 7 content'
-  },
-  {
-    title: 'Tab 8',
-    name: '8',
-    content: 'Tab 8 content'
-  }
-])
-
+const Tabs = reactive([])
 const TinyIconPopup = iconPopup()
+
+// 创建tabs
+for (let i = 1; i < 9; i++) {
+  const title = `Tab ${i}`
+  Tabs.push({
+    title,
+    name: i + '',
+    content: `${title} content `
+  })
+}
 </script>
diff --git a/examples/sites/demos/pc/app/tabs/custom-more-icon.vue b/examples/sites/demos/pc/app/tabs/custom-more-icon.vue
index 26e0a589d..ede462b24 100644
--- a/examples/sites/demos/pc/app/tabs/custom-more-icon.vue
+++ b/examples/sites/demos/pc/app/tabs/custom-more-icon.vue
@@ -1,7 +1,7 @@
 <template>
   <tiny-tabs style="width: 400px" show-more-tabs popper-class="custom-class">
     <template #moreIcon>
-      <icon-popup />
+      <tiny-icon-popup />
     </template>
     <tiny-tab-item :key="item.name" v-for="item in Tabs" :title="item.title" :name="item.name">
       {{ item.content }}
@@ -17,52 +17,22 @@ export default {
   components: {
     TinyTabs: Tabs,
     TinyTabItem: TabItem,
-    IconPopup: iconPopup()
+    TinyIconPopup: iconPopup()
   },
   data() {
     return {
-      Tabs: [
-        {
-          title: 'Tab 1',
-          name: '1',
-          content: 'Tab 1 content '
-        },
-        {
-          title: 'Tab 2',
-          name: '2',
-          content: 'Tab 2 content'
-        },
-        {
-          title: 'Tab 3',
-          name: '3',
-          content: 'Tab 3 content'
-        },
-        {
-          title: 'Tab 4',
-          name: '4',
-          content: 'Tab 4 content'
-        },
-        {
-          title: 'Tab 5',
-          name: '5',
-          content: 'Tab 5 content'
-        },
-        {
-          title: 'Tab 6',
-          name: '6',
-          content: 'Tab 6 content'
-        },
-        {
-          title: 'Tab 7',
-          name: '7',
-          content: 'Tab 7 content'
-        },
-        {
-          title: 'Tab 8',
-          name: '8',
-          content: 'Tab 8 content'
-        }
-      ]
+      Tabs: []
+    }
+  },
+  created() {
+    // 创建tabs
+    for (let i = 1; i < 9; i++) {
+      const title = `Tab ${i}`
+      this.Tabs.push({
+        title,
+        name: i + '',
+        content: `${title} content `
+      })
     }
   }
 }
diff --git a/examples/sites/demos/pc/app/tabs/more-show-all-composition-api.vue b/examples/sites/demos/pc/app/tabs/more-show-all-composition-api.vue
new file mode 100644
index 000000000..d87b929cc
--- /dev/null
+++ b/examples/sites/demos/pc/app/tabs/more-show-all-composition-api.vue
@@ -0,0 +1,29 @@
+<template>
+  <tiny-tabs style="width: 400px" show-more-tabs more-show-all panel-max-height="300px" panel-width="150px">
+    <template #moreIcon>
+      <tiny-icon-popup />
+    </template>
+    <tiny-tab-item :key="item.name" v-for="item in Tabs" :title="item.title" :name="item.name">
+      {{ item.content }}
+    </tiny-tab-item>
+  </tiny-tabs>
+</template>
+
+<script setup lang="jsx">
+import { reactive } from 'vue'
+import { Tabs as TinyTabs, TabItem as TinyTabItem } from '@opentiny/vue'
+import { iconPopup } from '@opentiny/vue-icon'
+
+const Tabs = reactive([])
+const TinyIconPopup = iconPopup()
+
+// 创建tabs
+for (let i = 1; i < 101; i++) {
+  const title = `Tab ${i}`
+  Tabs.push({
+    title,
+    name: i + '',
+    content: `${title} content `
+  })
+}
+</script>
diff --git a/examples/sites/demos/pc/app/tabs/more-show-all.spec.ts b/examples/sites/demos/pc/app/tabs/more-show-all.spec.ts
new file mode 100644
index 000000000..4793df183
--- /dev/null
+++ b/examples/sites/demos/pc/app/tabs/more-show-all.spec.ts
@@ -0,0 +1,53 @@
+import { test, expect } from '@playwright/test'
+
+test('超长数据下拉展示全部，面板长宽可控', async ({ page }) => {
+  page.on('pageerror', (exception) => expect(exception).toBeNull())
+  await page.goto('tabs#more-show-all')
+
+  const tabNav = page.locator('.tiny-tabs__nav.is-top.is-show-active-bar')
+  const showMoreBtn = page.locator('#more-show-all').getByRole('button')
+  const triggerBtn = page.locator('.tiny-tabs__more-container .tiny-dropdown__trigger.tiny-dropdown-trigger')
+  const panel = page.locator('.tiny-tabs__more-dropdown')
+
+  await showMoreBtn.hover()
+  await showMoreBtn.click()
+  await triggerBtn.click()
+  await page.waitForTimeout(200)
+  await panel.isVisible()
+  await expect(panel).toHaveCSS('width', '150px')
+  await expect(panel).toHaveCSS('max-height', '300px')
+
+  await showMoreBtn.click()
+  await triggerBtn.click()
+  await page
+    .locator('div')
+    .filter({ hasText: /^Tab 100$/ })
+    .nth(1)
+    .scrollIntoViewIfNeeded()
+  await page.waitForTimeout(200)
+  await page
+    .locator('div')
+    .filter({ hasText: /^Tab 100$/ })
+    .nth(1)
+    .click()
+  const tab100 = page.getByRole('tab', { name: 'Tab 100' })
+  await tab100.isVisible()
+  await expect(tab100).toHaveClass(/is-active/)
+
+  await showMoreBtn.click()
+  await triggerBtn.click()
+  await page
+    .locator('div')
+    .filter({ hasText: /^Tab 1$/ })
+    .nth(1)
+    .scrollIntoViewIfNeeded()
+  await page.waitForTimeout(200)
+  await page
+    .locator('div')
+    .filter({ hasText: /^Tab 1$/ })
+    .nth(1)
+    .click()
+  const tab1 = page.getByRole('tab', { name: 'Tab 1', exact: true })
+  await tab1.isVisible()
+  await expect(tab1).toHaveClass(/is-active/)
+})
diff --git a/examples/sites/demos/pc/app/tabs/more-show-all.vue b/examples/sites/demos/pc/app/tabs/more-show-all.vue
new file mode 100644
index 000000000..40f47f5b9
--- /dev/null
+++ b/examples/sites/demos/pc/app/tabs/more-show-all.vue
@@ -0,0 +1,39 @@
+<template>
+  <tiny-tabs style="width: 400px" show-more-tabs more-show-all panel-max-height="300px" panel-width="150px">
+    <template #moreIcon>
+      <tiny-icon-popup />
+    </template>
+    <tiny-tab-item :key="item.name" v-for="item in Tabs" :title="item.title" :name="item.name">
+      {{ item.content }}
+    </tiny-tab-item>
+  </tiny-tabs>
+</template>
+
+<script lang="jsx">
+import { Tabs, TabItem } from '@opentiny/vue'
+import { iconPopup } from '@opentiny/vue-icon'
+
+export default {
+  components: {
+    TinyTabs: Tabs,
+    TinyTabItem: TabItem,
+    TinyIconPopup: iconPopup()
+  },
+  data() {
+    return {
+      Tabs: []
+    }
+  },
+  created() {
+    // 创建tabs
+    for (let i = 1; i < 101; i++) {
+      const title = `Tab ${i}`
+      this.Tabs.push({
+        title,
+        name: i + '',
+        content: `${title} content `
+      })
+    }
+  }
+}
+</script>
diff --git a/examples/sites/demos/pc/app/tabs/webdoc/tabs.js b/examples/sites/demos/pc/app/tabs/webdoc/tabs.js
index 982abf163..f2fba24ce 100644
--- a/examples/sites/demos/pc/app/tabs/webdoc/tabs.js
+++ b/examples/sites/demos/pc/app/tabs/webdoc/tabs.js
@@ -91,9 +91,9 @@ export default {
       },
       desc: {
         'zh-CN': `通过 <code>with-close</code> 打开关闭按钮，并监听 <code>close</code> 事件自定义实现删除页签项的逻辑。
-          通过 <code>beforeClose</code> 函数属性，在关闭前回调该函数，其类型声明为：<code>(name: string)=> boolean | Promise&lt;boolean&gt;</code>`,
-        'en-US': `Use <code>with-close</code> to enable the close button and listen to the <code>close</code> event to customize the logic for deleting tab items.
-          The <code>beforeClose</code> function attribute is used to call back the function before the function is closed. The type of the function is declared as <code>(name: string)=> boolean | Promise<boolean></code>.`
+          <code>beforeClose</code> 设置删除前的操作，返回为false则取消删除，反之则执行删除。`,
+        'en-US': `Use <code>with-close</code> to open the close button and listen to the <code>close</code> event to customize the logic for deleting tab items.
+          <code>beforeClose</code> sets the operation before the deletion. If the return value is false, the deletion is canceled. Otherwise, the deletion is performed.`
       },
       codeFiles: ['tabs-events-close.vue']
     },
@@ -150,6 +150,20 @@ export default {
       },
       codeFiles: ['stretch-wh.vue']
     },
+    {
+      demoId: 'more-show-all',
+      name: {
+        'zh-CN': '超长数据下拉展示',
+        'en-US': 'Drop-down display of ultra-long data'
+      },
+      desc: {
+        'zh-CN':
+          '通过 <code>more-show-all</code> 设置下拉面板展示全部页签项，<code>panel-max-height</code> 设置面板最大高度； <code>panel-width</code> 设置面板宽度。',
+        'en-US':
+          'Use <code>more-show-all</code> to set the drop-down panel to display all tab items and <code>panel-max-height</code> to set the maximum height of the panel. <code>panel-width</code> sets the width of the panel.'
+      },
+      codeFiles: ['more-show-all.vue']
+    },
     {
       demoId: 'custom-tab-title',
       name: {
diff --git a/packages/renderless/src/tabs/index.ts b/packages/renderless/src/tabs/index.ts
index 2a755967e..5898e6186 100644
--- a/packages/renderless/src/tabs/index.ts
+++ b/packages/renderless/src/tabs/index.ts
@@ -88,6 +88,12 @@ export const calcMorePanes =
     const tabs = el.querySelectorAll('.tiny-tabs__item')
     const tabNavRefs = refs.nav.$refs
 
+    // 此处不同步aui。新规范适配
+    if (props.moreShowAll) {
+      state.showPanesCount = 0
+      return
+    }
+
     if (tabs && tabs.length) {
       let tabsAllWidth = 0
       for (let i = 0; i < tabs.length; i++) {
diff --git a/packages/theme/src/tabs/index.less b/packages/theme/src/tabs/index.less
index 0177d8951..49c8a3ecd 100644
--- a/packages/theme/src/tabs/index.less
+++ b/packages/theme/src/tabs/index.less
@@ -398,6 +398,7 @@
 
   &__more-dropdown.@{dropdown-menu-prefix-cls}.@{popper-prefix-cls} {
     margin-top: var(--ti-tabs-dropdown-more-margin-top); // smb新增
+    overflow: auto; // smb新增
   }
 
   &__more-dropdown &__more-item {
diff --git a/packages/vue/src/tabs/src/index.ts b/packages/vue/src/tabs/src/index.ts
index b8de98950..8611a8c45 100644
--- a/packages/vue/src/tabs/src/index.ts
+++ b/packages/vue/src/tabs/src/index.ts
@@ -65,7 +65,11 @@ export const tabsProps = {
   },
   beforeClose: Function,
   overflowTitle: Boolean,
-  titleWidth: String
+  titleWidth: String,
+  // tiny 新增
+  moreShowAll: Boolean,
+  panelMaxHeight: String,
+  panelWidth: String
 }
 
 export default defineComponent({
diff --git a/packages/vue/src/tabs/src/pc.vue b/packages/vue/src/tabs/src/pc.vue
index 333e88882..ba12352b3 100644
--- a/packages/vue/src/tabs/src/pc.vue
+++ b/packages/vue/src/tabs/src/pc.vue
@@ -49,7 +49,10 @@ export default defineComponent({
     'separator',
     'beforeClose',
     'overflowTitle',
-    'titleWidth'
+    'titleWidth',
+    'moreShowAll',
+    'panelMaxHeight',
+    'panelWidth'
   ],
   components: {
     TabNav,
@@ -84,7 +87,9 @@ export default defineComponent({
       dropConfig,
       tooltipConfig,
       overflowTitle,
-      titleWidth
+      titleWidth,
+      panelMaxHeight,
+      panelWidth
     } = this
 
     const newButton =
@@ -120,7 +125,9 @@ export default defineComponent({
         tooltipConfig,
         overflowTitle,
         titleWidth,
-        separator: state.separator
+        separator: state.separator,
+        panelMaxHeight,
+        panelWidth
       },
       on: {
         'tab-drag-start': handleTabDragStart,
diff --git a/packages/vue/src/tabs/src/tab-nav/index.ts b/packages/vue/src/tabs/src/tab-nav/index.ts
index 112228f1a..dbebe812f 100644
--- a/packages/vue/src/tabs/src/tab-nav/index.ts
+++ b/packages/vue/src/tabs/src/tab-nav/index.ts
@@ -35,7 +35,9 @@ export const tabNavPcProps = {
     default: '256px'
   },
   // tiny 新增
-  tooltipConfig: [String, Object]
+  tooltipConfig: [String, Object],
+  panelMaxHeight: String,
+  panelWidth: String
 }
 
 export const tabNavMobileProps = {
diff --git a/packages/vue/src/tabs/src/tab-nav/pc.vue b/packages/vue/src/tabs/src/tab-nav/pc.vue
index 95bea9c3c..1ee7c6216 100644
--- a/packages/vue/src/tabs/src/tab-nav/pc.vue
+++ b/packages/vue/src/tabs/src/tab-nav/pc.vue
@@ -111,7 +111,9 @@ export default defineComponent({
       handleTitleMouseleave,
       // tiny 新增
       moreIcon,
-      tooltipConfig
+      tooltipConfig,
+      panelMaxHeight,
+      panelWidth
     } = this
     let { panes } = this
 
@@ -174,7 +176,8 @@ export default defineComponent({
           ? h(DropdownMenu, {
               attrs: {
                 popperClass: 'tiny-tabs-dropdown tiny-tabs__more-dropdown' + (popperClass ? ' ' + popperClass : ''),
-                placement: 'bottom-start'
+                placement: 'bottom-start',
+                style: { maxHeight: panelMaxHeight, width: panelWidth }
               },
               scopedSlots: { default: menuSlot }
             })