diff --git a/src/components/ai/ImageInput.vue b/src/components/ai/ImageInput.vue
index 43bae1d..a8809c0 100644
--- a/src/components/ai/ImageInput.vue
+++ b/src/components/ai/ImageInput.vue
@@ -2,7 +2,7 @@
 //! 图片输入预览 — 待发送图片缩略图列表,从 ChatInput.vue 提取
 //!
 //! 职责:显示待发送图片缩略图、移除按钮。不含图片读取/粘贴/拖拽逻辑。
-//! 2026-08-06:支持 url 模式(file.1216.top 上传)与 dataUrl 模式(base64)双预览。
+//! 2026-08-06:支持 url 模式(文件服务上传)与 dataUrl 模式(base64)双预览。
 
 import { useI18n } from 'vue-i18n'
 
diff --git a/src/components/settings/AdvancedSection.vue b/src/components/settings/AdvancedSection.vue
index 0b23d46..01dc02d 100644
--- a/src/components/settings/AdvancedSection.vue
+++ b/src/components/settings/AdvancedSection.vue
@@ -60,6 +60,17 @@
         </div>
         <span class="setting-desc">{{ $t('settings.descApprovalTimeout') }}</span>
       </div>
+      <!-- 文件上传服务端点:配置后聊天图片上传到用户自己的文件服务转公开 URL;留空则图片本地 base64 内嵌。
+           与 fileUpload.ts 的读取约定同 key(df-file-upload-base),blur/enter 提交即落库生效 -->
+      <SettingRow ref="rowUploadBase" :label="$t('settings.labelFileUploadBase')" :desc="$t('settings.descFileUploadBase')">
+        <input
+          v-model="fileUploadBase"
+          class="setting-input upload-base-input"
+          :placeholder="$t('settings.placeholderFileUploadBase')"
+          @change="onUploadBaseChange"
+        />
+      </SettingRow>
+
       <!-- 自定义提示词:注入到 AI 系统 prompt 末尾,用户可自定义 AI 行为偏好 -->
       <!-- 布局:整行堆叠——label/desc 在上,textarea 独立一行从左到右拉满(而非 label 左 + 框右) -->
       <SettingRow ref="rowCustomPrompt" class="prompt-row" :label="$t('settings.labelCustomPrompt')" :desc="$t('settings.descCustomPrompt')">
@@ -156,6 +167,17 @@ const customPrompt = ref(appSettings.get<string>('custom_prompt', ''))
 // 三个 select 行改为自定义布局(不复用 SettingRow),saved-hint 由本地 savedVisible 状态驱动
 const rowCustomPrompt = useTemplateRef<InstanceType<typeof SettingRow>>('rowCustomPrompt')
 
+// 文件上传服务端点:与 fileUpload.ts 同 key(df-file-upload-base)。留空即不上传(图片本地 base64),
+// 配置后下次发图即走该服务;trim 提交防空格误配
+const rowUploadBase = useTemplateRef<InstanceType<typeof SettingRow>>('rowUploadBase')
+const fileUploadBase = ref(appSettings.get<string>('df-file-upload-base', ''))
+
+function onUploadBaseChange() {
+  fileUploadBase.value = fileUploadBase.value.trim()
+  appSettings.set('df-file-upload-base', fileUploadBase.value)
+  rowUploadBase.value?.markSaved()
+}
+
 // 「已保存」提示可见性(2s 自动隐藏),key 对齐模板三行
 const savedVisible = reactive<Record<string, boolean>>({
   autoExecute: false,
@@ -242,6 +264,11 @@ function onApprovalTimeoutChange() {
   word-break: break-all;
   line-height: 1.4;
 }
+/* 端点输入走等宽字体(URL 逐字符核对更易读),对齐 AllowedDirsPanel 路径输入风格 */
+.upload-base-input {
+  min-width: 280px;
+  font-family: var(--df-font-mono, monospace);
+}
 /* 自定义提示词行:整行堆叠,textarea 独立一行从左到右拉满。
    覆盖 SettingRow 默认横排(label 左 + control 右)。 */
 .prompt-row {
diff --git a/src/components/settings/searchIndex.ts b/src/components/settings/searchIndex.ts
index 019a676..a6ed510 100644
--- a/src/components/settings/searchIndex.ts
+++ b/src/components/settings/searchIndex.ts
@@ -90,5 +90,6 @@ export const SETTINGS_INDEX: SettingIndexEntry[] = [
   { category: 'advanced', key: 'autoExecuteMode', labelKey: 'settings.labelAutoExecute', descKey: 'settings.descAutoExecute' },
   { category: 'advanced', key: 'logLevel', labelKey: 'settings.labelLogLevel', descKey: 'settings.descLogLevel' },
   { category: 'advanced', key: 'approvalTimeout', labelKey: 'settings.labelApprovalTimeout', descKey: 'settings.descApprovalTimeout' },
+  { category: 'advanced', key: 'fileUploadBase', labelKey: 'settings.labelFileUploadBase', descKey: 'settings.descFileUploadBase' },
   { category: 'advanced', key: 'connection', labelKey: 'settings.panelConnection', descKey: 'settings.emptyConnection' },
 ]
diff --git a/src/composables/ai/fileUpload.ts b/src/composables/ai/fileUpload.ts
index 3c7ac2b..075b22d 100644
--- a/src/composables/ai/fileUpload.ts
+++ b/src/composables/ai/fileUpload.ts
@@ -1,13 +1,16 @@
-//! 桌面端文件服务上传(file.1216.top)— 图片/文件 → 公开 URL
+//! 桌面端文件服务上传:可配置端点 POST /upload(multipart 'file' + X-Source 头),图片/文件转公开 URL。
+//! 默认不配置上传服务,图片走本地引用(base64);在设置页配置端点后启用上传。
+//! 未配置时 uploadFile 直接 reject,调用方(ChatInput)catch 后回退本地 base64,不阻断图片输入。
 //!
-//! 与小程序端 `apps/df-miniapp/src/utils/fileUpload.ts` 对称:复用 file.1216.top 的
-//! `POST /upload`(multipart 'file' + X-Source 头)→ 返回公开 URL。
-//! 桌面端是浏览器环境,用 fetch + FormData(区别于小程序 uni.uploadFile)。
-//! file.1216.top 已确认 CORS 支持(`Access-Control-Allow-Origin: *`,X-Source 在 allow-headers)。
+//! 与小程序端 `apps/df-miniapp/src/utils/fileUpload.ts` 对称:桌面端是浏览器环境,
+//! 用 fetch + FormData(区别于小程序 uni.uploadFile)。端点需支持 CORS 与该响应结构:
+//! `{"result":{"url":"..."},"retcode":0,"success":true}`。
 
-/** file.1216.top 上传地址(可经 appSettings 'df-file-upload-base' 覆盖) */
-export const DEFAULT_FILE_UPLOAD_BASE = 'https://file.1216.top'
-/** X-Source 项目标识(文件存 file.1216.top 对应目录,项目隔离) */
+import { useAppSettingsStore } from '../../stores/appSettings'
+
+/** 上传服务根地址,默认空串:不配置上传服务,图片走本地引用;设置页 df-file-upload-base 可覆盖 */
+export const DEFAULT_FILE_UPLOAD_BASE = ''
+/** X-Source 项目标识(服务端按来源目录隔离文件) */
 export const FILE_UPLOAD_SOURCE = 'devflow-desktop'
 
 export interface UploadResult {
@@ -15,11 +18,15 @@ export interface UploadResult {
 }
 
 /**
- * 上传文件到 file.1216.top,返回公开 URL。失败 reject(调用方回退 base64)。
- * 响应结构:`{"result":{"url":"https://..."},"retcode":0,"success":true}`
+ * 上传文件到文件服务,返回公开 URL。未配置端点或上传失败时 reject,调用方回退 base64。
+ * 端点取值:入参 base 优先,其次设置项 df-file-upload-base,最后 DEFAULT_FILE_UPLOAD_BASE(空)。
  */
 export async function uploadFile(file: File, base?: string): Promise<UploadResult> {
-  const uploadBase = base || DEFAULT_FILE_UPLOAD_BASE
+  const configured = useAppSettingsStore().get<string>('df-file-upload-base', '')
+  const uploadBase = (base || configured || DEFAULT_FILE_UPLOAD_BASE).trim()
+  if (!uploadBase) {
+    throw new Error('未配置文件上传服务端点')
+  }
   const form = new FormData()
   form.append('file', file, file.name)
   const res = await fetch(`${uploadBase}/upload`, {
diff --git a/src/i18n/en/settings.ts b/src/i18n/en/settings.ts
index 6a08e91..2b6092b 100644
--- a/src/i18n/en/settings.ts
+++ b/src/i18n/en/settings.ts
@@ -162,6 +162,11 @@ export default {
     descCustomPrompt: 'Appended to the AI system prompt to customize AI behavior',
     placeholderCustomPrompt: 'e.g.: You specialize in Rust development questions...',
 
+    // File upload endpoint
+    labelFileUploadBase: 'File upload endpoint',
+    descFileUploadBase: 'When set, chat images are uploaded to your own file service and turned into public URLs; leave empty to embed images locally (base64)',
+    placeholderFileUploadBase: 'e.g.: https://your-file-service.example.com',
+
     labelStreamingMd: 'Streaming Markdown rendering',
     descStreamingMd: 'Render code blocks/lists/headings during streaming (unclosed code blocks degrade to plain text to avoid flicker); when off, only plain text is shown during streaming and full formatting applies after generation completes',
 
diff --git a/src/i18n/zh-CN/settings.ts b/src/i18n/zh-CN/settings.ts
index 0ee061d..89f1c3d 100644
--- a/src/i18n/zh-CN/settings.ts
+++ b/src/i18n/zh-CN/settings.ts
@@ -161,6 +161,11 @@ export default {
     descCustomPrompt: '追加到 AI 系统提示词末尾，可自定义 AI 行为偏好',
     placeholderCustomPrompt: '例如：你擅长回答 Rust 开发问题...',
 
+    // 文件上传服务端点
+    labelFileUploadBase: '文件上传服务端点',
+    descFileUploadBase: '配置后聊天图片上传到你的文件服务并转为公开 URL;留空则图片以本地方式内嵌(base64)',
+    placeholderFileUploadBase: '例如:https://your-file-service.example.com',
+
     labelStreamingMd: '流式 Markdown 渲染',
     descStreamingMd: '流式生成过程中渲染代码块/列表/标题格式(未闭合代码块降级纯文本防闪烁);关闭后流式期间仅显纯文本,生成完成后才渲染完整格式',