diff --git a/docs/demos/sender/actions-enhanced.vue b/docs/demos/sender/actions-enhanced.vue
index 84df3a3db..34de34c32 100644
--- a/docs/demos/sender/actions-enhanced.vue
+++ b/docs/demos/sender/actions-enhanced.vue
@@ -1,19 +1,30 @@
 <script setup lang="ts">
 import { ref } from 'vue'
 import { TrSender, UploadButton, VoiceButton } from '@opentiny/tiny-robot'
+import { Tag as TinyTag } from '@opentiny/vue'
 
 const content = ref('')
 const message = ref('')
+const selectedFiles = ref<File[]>([])
 
 const handleSubmit = (text: string) => {
-  message.value = `已提交: ${text}`
+  const fileNames = selectedFiles.value.map((file) => file.name).join(', ')
+  message.value = fileNames ? `已提交: ${text || '(无文本)'}，附件: ${fileNames}` : `已提交: ${text}`
   content.value = ''
+  selectedFiles.value = []
   setTimeout(() => (message.value = ''), 3000)
 }
 
 const handleFiles = (files: File[]) => {
-  message.value = `选择了 ${files.length} 个文件: ${files.map((f) => f.name).join(', ')}`
-  setTimeout(() => (message.value = ''), 3000)
+  selectedFiles.value = [...selectedFiles.value, ...files]
+}
+
+const handleClear = () => {
+  selectedFiles.value = []
+}
+
+const removeFile = (index: number) => {
+  selectedFiles.value = selectedFiles.value.filter((_, fileIndex) => fileIndex !== index)
 }
 
 const handleVoiceFinal = (text: string) => {
@@ -27,8 +38,10 @@ const handleVoiceFinal = (text: string) => {
       v-model="content"
       placeholder="输入内容，或使用语音/上传文件..."
       mode="multiple"
+      :has-external-content="selectedFiles.length > 0"
       clearable
       @submit="handleSubmit"
+      @clear="handleClear"
     >
       <template #footer-right>
         <!-- 上传按钮 -->
@@ -45,6 +58,18 @@ const handleVoiceFinal = (text: string) => {
       </template>
     </tr-sender>
 
+    <div v-if="selectedFiles.length" class="file-list">
+      <tiny-tag
+        v-for="(file, index) in selectedFiles"
+        :key="`${file.name}-${file.lastModified}-${index}`"
+        :max-width="240"
+        closable
+        @close="removeFile(index)"
+      >
+        {{ file.name }}
+      </tiny-tag>
+    </div>
+
     <div v-if="message" class="message">{{ message }}</div>
   </div>
 </template>
@@ -61,4 +86,11 @@ const handleVoiceFinal = (text: string) => {
   border-radius: 6px;
   color: #1476ff;
 }
+
+.file-list {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin-top: 12px;
+}
 </style>
diff --git a/docs/src/components/sender.md b/docs/src/components/sender.md
index cf98caf50..cb5baaaa3 100644
--- a/docs/src/components/sender.md
+++ b/docs/src/components/sender.md
@@ -191,6 +191,8 @@ TrSender.Suggestion.configure({ items: suggestions, filterFn: customFilter })
 
 <demo vue="../../demos/sender/actions-enhanced.vue" title="增强按钮" description="通过插槽添加 Upload、Voice 等增强按钮。" />
 
+附件、图片等内容通常由独立组件维护，不会写入 Sender 的编辑器文本。当用户只上传附件或图片、不输入额外文本时，Sender 无法感知这部分外部内容，会因输入框为空而不显示默认发送按钮。此时可以通过 `hasExternalContent` 告诉 Sender 当前存在外部可提交内容，例如 `:has-external-content="files.length > 0"`。设置后，即使输入框为空，默认发送按钮也会显示，快捷键提交和 `submit()` 方法也会按有内容处理。默认清空按钮仍只根据编辑器文本显示；外部内容数据由业务侧维护，建议由附件或图片列表提供自己的删除入口。
+
 **配置详见**：[UploadButton 属性](#uploadbutton)、[VoiceButton 属性](#voicebutton)
 
 ## 交互定制
@@ -281,6 +283,7 @@ Sender 提供了多个插槽位置，方便扩展功能：
 | enterkeyhint @0.4 | 移动端虚拟键盘回车键提示 | `EnterKeyHint` | `'send'` |
 | autoSize | 自动调整高度 | `boolean \| { minRows: number, maxRows: number }` | `{ minRows: 1, maxRows: 5 }` |
 | clearable | 是否可清空 | `boolean` | `false` |
+| hasExternalContent @0.5 | 是否存在外部可提交内容，适用于附件、图片等不写入编辑器文本的内容 | `boolean` | `false` |
 | maxLength | 最大输入长度 | `number` | `Infinity` |
 | showWordLimit | 是否显示字数统计 | `boolean` | `false` |
 | submitType | 提交方式 | `'enter' \| 'ctrlEnter' \| 'shiftEnter'` | `'enter'` |
diff --git a/packages/components/src/sender-actions/clear-button/useClearButtonState.ts b/packages/components/src/sender-actions/clear-button/useClearButtonState.ts
index e00b76948..1f90c45f7 100644
--- a/packages/components/src/sender-actions/clear-button/useClearButtonState.ts
+++ b/packages/components/src/sender-actions/clear-button/useClearButtonState.ts
@@ -2,7 +2,7 @@ import { computed } from 'vue'
 import { useSenderContext } from '../../sender/context'
 
 export const useClearButtonState = () => {
-  const { hasContent, clearable, loading, defaultActions } = useSenderContext()
+  const { hasEditorContent, clearable, loading, defaultActions } = useSenderContext()
 
   const isDisabled = computed<boolean>(() => {
     if (defaultActions.value?.clear?.disabled !== undefined) {
@@ -17,7 +17,7 @@ export const useClearButtonState = () => {
   const tooltipPlacement = computed(() => defaultActions.value?.clear?.tooltipPlacement ?? 'top')
 
   const show = computed<boolean>(() => {
-    return clearable.value && hasContent.value && !loading.value && !isDisabled.value
+    return clearable.value && hasEditorContent.value && !loading.value && !isDisabled.value
   })
 
   return {
diff --git a/packages/components/src/sender/composables/useSenderCore.ts b/packages/components/src/sender/composables/useSenderCore.ts
index ee276f84b..3e590b09f 100644
--- a/packages/components/src/sender/composables/useSenderCore.ts
+++ b/packages/components/src/sender/composables/useSenderCore.ts
@@ -69,12 +69,16 @@ export function useSenderCore(props: SenderPropsWithDefaults, emit: SenderEmits)
   // 2. 基础状态计算（依赖 editor）
   // ========================================
 
-  const hasContent = computed(() => {
+  const hasEditorContent = computed(() => {
     if (!editor.value) return false
     const text = getTextWithTemplates(editor.value)
     return text.trim().length > 0
   })
 
+  const hasContent = computed(() => {
+    return hasEditorContent.value || Boolean(props.hasExternalContent)
+  })
+
   const characterCount = computed(() => {
     if (!editor.value) return 0
     return countGraphemes(getTextWithTemplates(editor.value))
@@ -271,6 +275,7 @@ export function useSenderCore(props: SenderPropsWithDefaults, emit: SenderEmits)
     loading: computed(() => props.loading ?? false),
     disabled: computed(() => props.disabled ?? false),
     hasContent,
+    hasEditorContent,
     canSubmit,
     isOverLimit,
     characterCount,
diff --git a/packages/components/src/sender/index.type.ts b/packages/components/src/sender/index.type.ts
index c6ab18fec..c16d1011c 100644
--- a/packages/components/src/sender/index.type.ts
+++ b/packages/components/src/sender/index.type.ts
@@ -136,6 +136,16 @@ export interface SenderProps {
    */
   clearable?: boolean
 
+  /**
+   * 是否存在外部可提交内容
+   *
+   * 用于附件、图片、文件列表等不写入编辑器文本的内容场景。
+   * 当编辑器文本为空但该值为 true 时，Sender 仍会认为存在可提交内容。
+   *
+   * @default false
+   */
+  hasExternalContent?: boolean
+
   // ===== 扩展配置 =====
 
   /**
diff --git a/packages/components/src/sender/index.vue b/packages/components/src/sender/index.vue
index 6144577c8..64b7bbef8 100644
--- a/packages/components/src/sender/index.vue
+++ b/packages/components/src/sender/index.vue
@@ -10,6 +10,7 @@ const props = withDefaults(defineProps<SenderProps>(), {
   size: 'normal',
   submitType: 'enter',
   enterkeyhint: 'send',
+  hasExternalContent: false,
   extensions: () => [],
   autoSize: () => ({ minRows: 1, maxRows: 5 }),
 })
diff --git a/packages/components/src/sender/types/context.ts b/packages/components/src/sender/types/context.ts
index d4ef67d38..021bcb966 100644
--- a/packages/components/src/sender/types/context.ts
+++ b/packages/components/src/sender/types/context.ts
@@ -50,6 +50,13 @@ export interface SenderContext {
    */
   hasContent: Ref<boolean>
 
+  /**
+   * 编辑器内是否有文本内容
+   *
+   * 不包含附件、图片等外部内容，主要用于清空按钮等只作用于编辑器文本的场景。
+   */
+  hasEditorContent: Ref<boolean>
+
   /**
    * 是否可以提交
    *
diff --git a/packages/test/src/sender/helpers/index.ts b/packages/test/src/sender/helpers/index.ts
index 182d99276..883848998 100644
--- a/packages/test/src/sender/helpers/index.ts
+++ b/packages/test/src/sender/helpers/index.ts
@@ -65,6 +65,10 @@ export function createSenderTestHelper(page: Page) {
       await page.locator(selectors.toggleSizeBtn).click()
     },
 
+    async toggleExternalContent() {
+      await page.locator(selectors.toggleExternalContentBtn).click()
+    },
+
     async setSubmitType(type: 'enter' | 'ctrlEnter' | 'shiftEnter') {
       await page.locator(selectors.submitTypeSelect).selectOption(type)
     },
@@ -144,6 +148,15 @@ export function createSenderTestHelper(page: Page) {
       }
     },
 
+    async expectSubmitButtonVisible(visible: boolean) {
+      const submitBtn = page.locator(selectors.submitButton)
+      if (visible) {
+        await expect(submitBtn).toBeVisible()
+      } else {
+        await expect(submitBtn).toHaveCount(0)
+      }
+    },
+
     async expectWordCounter(text: string) {
       await expect(page.locator(selectors.wordCounter)).toContainText(text)
     },
diff --git a/packages/test/src/sender/index.vue b/packages/test/src/sender/index.vue
index 337be5357..4288ea249 100644
--- a/packages/test/src/sender/index.vue
+++ b/packages/test/src/sender/index.vue
@@ -23,6 +23,7 @@ const loading = ref(false)
 const disabled = ref(false)
 const showWordLimit = ref(true)
 const isSmallSize = ref(false)
+const hasExternalContent = ref(false)
 const submitType = ref<'enter' | 'ctrlEnter' | 'shiftEnter'>('enter')
 const maxLength = ref(100)
 const placeholder = ref('请输入内容...')
@@ -258,6 +259,10 @@ onBeforeUnmount(() => {
             <tiny-switch data-testid="toggle-size-btn" v-model="isSmallSize" @change="handleSizeChange"></tiny-switch>
             <span>{{ size }}</span>
           </div>
+          <div class="control-item">
+            <label>hasExternalContent:</label>
+            <tiny-switch data-testid="toggle-external-content-btn" v-model="hasExternalContent"></tiny-switch>
+          </div>
           <div class="control-item">
             <label>submitType:</label>
             <select data-testid="submit-type-select" v-model="submitType">
@@ -337,6 +342,7 @@ onBeforeUnmount(() => {
       :show-word-limit="showWordLimit"
       :placeholder="placeholder"
       :submit-type="submitType"
+      :has-external-content="hasExternalContent"
       @submit="handleSubmit"
       @cancel="handleCancel"
       @clear="handleClear"
diff --git a/packages/test/src/sender/selectors.ts b/packages/test/src/sender/selectors.ts
index 4f92f76a3..c66ab1e4e 100644
--- a/packages/test/src/sender/selectors.ts
+++ b/packages/test/src/sender/selectors.ts
@@ -9,6 +9,7 @@ export const SENDER_SELECTORS = {
   toggleDisabledBtn: '[data-testid="toggle-disabled-btn"]',
   toggleWordLimitBtn: '[data-testid="toggle-word-limit-btn"]',
   toggleSizeBtn: '[data-testid="toggle-size-btn"]',
+  toggleExternalContentBtn: '[data-testid="toggle-external-content-btn"]',
   submitTypeSelect: '[data-testid="submit-type-select"]',
   maxLengthInput: '[data-testid="max-length-input"]',
   placeholderInput: '[data-testid="placeholder-input"]',
diff --git a/packages/test/src/sender/specs/basic.spec.ts b/packages/test/src/sender/specs/basic.spec.ts
index bfb5931b5..78590da8e 100644
--- a/packages/test/src/sender/specs/basic.spec.ts
+++ b/packages/test/src/sender/specs/basic.spec.ts
@@ -50,6 +50,22 @@ test.describe('Sender 组件测试', () => {
     await helper.expectLoadingButtonVisible(true)
   })
 
+  test('Props: hasExternalContent - 应该支持仅外部内容提交', async () => {
+    await helper.expectEditorEmpty()
+    await helper.expectSubmitButtonVisible(false)
+
+    await helper.toggleClearable()
+    await helper.expectClearButtonVisible(false)
+
+    await helper.toggleExternalContent()
+    await helper.expectSubmitButtonVisible(true)
+    await helper.expectClearButtonVisible(false)
+    await helper.expectSubmitButtonDisabled(false)
+
+    await helper.clickSubmit()
+    await helper.expectResult('提交内容:')
+  })
+
   test('Props: disabled - 应该正确控制禁用状态', async () => {
     await helper.typeContent('测试内容')
     await helper.expectEditorContent('测试内容')