diff --git a/python-api/app/ai/prompts/user/title.txt b/python-api/app/ai/prompts/user/title.txt
new file mode 100644
index 0000000..9e5bfca
--- /dev/null
+++ b/python-api/app/ai/prompts/user/title.txt
@@ -0,0 +1,12 @@
+请根据以下脚本内容，创作一个${title_type_desc}。
+
+脚本内容：
+${script_content}
+
+要求：
+- 类型：${title_type_desc}
+- 字数限制：严格控制在 ${max_length} 个字以内（含标点）
+- 风格：短视频平台风格，吸引眼球，口语化，避免生僻字
+- 大标题需提炼核心卖点，小标题需补充说明或制造悬念
+
+直接返回标题文字，不要加引号、书名号或任何额外说明。
\ No newline at end of file
diff --git a/python-api/app/ai/prompts/user/title_system.txt b/python-api/app/ai/prompts/user/title_system.txt
new file mode 100644
index 0000000..4d8da52
--- /dev/null
+++ b/python-api/app/ai/prompts/user/title_system.txt
@@ -0,0 +1,9 @@
+你是一位专业的短视频标题创作专家，擅长为口播类短视频创作吸引眼球的标题。
+
+创作原则：
+1. 标题要紧扣脚本核心内容，提炼最有吸引力的点
+2. 语言口语化，符合短视频平台（抖音、快手）风格
+3. 善用数字、疑问、对比等手法增强吸引力
+4. 严格控制字数，不超过用户指定的限制
+5. 直接返回标题文字，不要加引号、书名号或其他装饰符号
+6. 不要返回任何解释、说明或JSON格式
diff --git a/python-api/app/api/v1/script.py b/python-api/app/api/v1/script.py
index 73352a4..d1dd25d 100644
--- a/python-api/app/api/v1/script.py
+++ b/python-api/app/api/v1/script.py
@@ -15,10 +15,13 @@ from fastapi import APIRouter, Request
 from fastapi.responses import StreamingResponse
 
 from app.schemas.common import ApiResponse, success_response
-from app.ai.prompts import list_categories
+from app.ai.model_router import get_model_router
+from app.ai.prompts import list_categories, load_prompt, render_template
 from app.schemas.script import (
     CategoryItem,
     GenerateScriptRequest,
+    GenerateTitleRequest,
+    GenerateTitleResponse,
     ModelHealthResponse,
     PolishRequest,
     ScriptGenerationEvent,
@@ -202,3 +205,63 @@ async def test_model(request: TestModelRequest):
         data=TestModelResponse(**result),
         message="模型测试完成" if result["success"] else f"模型测试失败: {result.get('error')}",
     )
+
+
+@router.post("/generate-title", response_model=ApiResponse[GenerateTitleResponse])
+async def generate_title(request: GenerateTitleRequest):
+    """
+    根据脚本内容智能生成标题
+
+    调用 LLM 根据脚本内容生成大标题或小标题。
+    提示词从文件加载，支持热更新。
+    """
+    model_router = await get_model_router()
+
+    # 加载提示词
+    system_prompt = load_prompt("user/title_system")
+    user_template = load_prompt("user/title")
+
+    if not system_prompt or not user_template:
+        return success_response(
+            code=500,
+            message="标题生成提示词文件缺失",
+            data=None,
+        )
+
+    # 渲染用户提示词
+    title_type_desc = "大标题（主标题，提炼核心卖点，吸睛）" if request.title_type == "main" else "小标题（副标题，补充说明或制造悬念）"
+    user_prompt = render_template(
+        user_template,
+        title_type=request.title_type,
+        title_type_desc=title_type_desc,
+        script_content=request.script_content,
+        max_length=request.max_length,
+    )
+
+    try:
+        result = await model_router.generate(
+            prompt=user_prompt,
+            system_prompt=system_prompt,
+            task_type="script",
+            temperature=0.8,
+            max_tokens=64,
+        )
+
+        title = result.content.strip() if result.content else ""
+        # 去除可能的引号
+        title = title.strip('"').strip("'").strip('「」').strip('『』').strip('《》')
+        # 截断到最大长度
+        if len(title) > request.max_length:
+            title = title[:request.max_length]
+
+        return success_response(
+            data=GenerateTitleResponse(title=title),
+            message="标题生成成功",
+        )
+    except Exception as e:
+        logger.error(f"[generate_title] 标题生成失败: {e}")
+        return success_response(
+            code=500,
+            message=f"标题生成失败: {str(e)}",
+            data=None,
+        )
diff --git a/python-api/app/schemas/script.py b/python-api/app/schemas/script.py
index 55c3e8a..4cb6fda 100644
--- a/python-api/app/schemas/script.py
+++ b/python-api/app/schemas/script.py
@@ -109,3 +109,17 @@ class TestModelResponse(BaseModel):
     response_time: float | None = Field(None, description="响应时间（毫秒）")
     error: str | None = Field(None, description="错误信息")
     checked_at: str | None = Field(None, description="检查时间 ISO 格式")
+
+
+class GenerateTitleRequest(BaseModel):
+    """生成标题请求"""
+
+    script_content: str = Field(..., description="脚本内容（utterances 文本拼接）", min_length=1)
+    title_type: str = Field(..., description="标题类型：main(大标题) / sub(小标题)")
+    max_length: int = Field(default=8, ge=1, le=100, description="最大字数限制")
+
+
+class GenerateTitleResponse(BaseModel):
+    """生成标题响应"""
+
+    title: str = Field(..., description="生成的标题")
diff --git a/tauri-app/src/api/modules/script.ts b/tauri-app/src/api/modules/script.ts
index b852377..843ff1c 100644
--- a/tauri-app/src/api/modules/script.ts
+++ b/tauri-app/src/api/modules/script.ts
@@ -65,6 +65,22 @@ export interface ModelHealthResponse {
   error?: string;
 }
 
+/**
+ * 生成标题请求参数
+ */
+export interface GenerateTitleParams {
+  scriptContent: string;
+  titleType: 'main' | 'sub';
+  maxLength?: number;
+}
+
+/**
+ * 生成标题响应
+ */
+export interface GenerateTitleResponse {
+  title: string;
+}
+
 /**
  * 测试模型请求
  */
@@ -175,6 +191,20 @@ export const scriptApi = {
     });
   },
 
+  /**
+   * 智能生成标题
+   * POST /script/generate-title
+   *
+   * 根据脚本内容生成大标题或小标题
+   */
+  generateTitle: async (params: GenerateTitleParams): Promise<GenerateTitleResponse> => {
+    return client.post<GenerateTitleResponse>('/script/generate-title', {
+      script_content: params.scriptContent,
+      title_type: params.titleType,
+      max_length: params.maxLength,
+    });
+  },
+
   /**
    * AI 润色脚本
    * POST /script/polish
diff --git a/tauri-app/src/pages/VideoCreation/SubtitleBurning.css b/tauri-app/src/pages/VideoCreation/SubtitleBurning.css
index 5f6bee3..f14583e 100644
--- a/tauri-app/src/pages/VideoCreation/SubtitleBurning.css
+++ b/tauri-app/src/pages/VideoCreation/SubtitleBurning.css
@@ -340,6 +340,17 @@
   border-bottom: none;
 }
 
+/* 标题输入框行（输入框 + 生成按钮） */
+.title-input-row {
+  display: flex;
+  gap: var(--spacing-sm);
+  align-items: center;
+}
+
+.title-input-row .title-input {
+  flex: 1;
+}
+
 /* 标题输入框 */
 .title-input {
   width: 100%;
@@ -361,6 +372,15 @@
   color: var(--text-tertiary);
 }
 
+/* 智能生成按钮 */
+.title-generate-btn {
+  white-space: nowrap;
+  font-size: var(--font-xs);
+  padding: var(--spacing-xs) var(--spacing-sm);
+  border-radius: var(--radius-md);
+  flex-shrink: 0;
+}
+
 /* 压制字幕按钮 - 固定在底部 */
 .burn-btn {
   width: 100%;
diff --git a/tauri-app/src/pages/VideoCreation/SubtitleBurning.tsx b/tauri-app/src/pages/VideoCreation/SubtitleBurning.tsx
index 75baa81..dca3844 100644
--- a/tauri-app/src/pages/VideoCreation/SubtitleBurning.tsx
+++ b/tauri-app/src/pages/VideoCreation/SubtitleBurning.tsx
@@ -11,6 +11,7 @@ import { invoke } from '@tauri-apps/api/core';
 import { homeDir } from '@tauri-apps/api/path';
 import { useProjectStore, saveMetaToLocalFile } from '../../store';
 import { getCurrentProjectId } from '../../api/modules/localStorage';
+import { scriptApi } from '../../api/modules/script';
 
 import { useLocalVideo } from '../../hooks/useLocalVideo';
 import { useCanvasSubtitleRenderer } from '../../hooks/useCanvasSubtitleRenderer';
@@ -79,6 +80,7 @@ export default function SubtitleBurning() {
   const alignment = useProjectStore(state => state.subtitleAlignment);
   const [isBurning, setIsBurning] = useState(false);
   const [previewMode, setPreviewMode] = useState<'style' | 'result'>('style');
+  const [isGeneratingTitle, setIsGeneratingTitle] = useState(false);
 
   // 视频播放相关
   const videoRef = useRef<HTMLVideoElement>(null);
@@ -111,6 +113,37 @@ export default function SubtitleBurning() {
     useProjectStore.setState({ subTitle: value });
     saveMetaToLocalFile({ subTitle: value });
   };
+
+  // 智能生成标题
+  const handleGenerateTitle = async (titleType: 'main' | 'sub') => {
+    const utterances = alignment?.utterances;
+    if (!utterances || utterances.length === 0) {
+      toast.error('暂无脚本内容，请先生成脚本');
+      return;
+    }
+    const scriptContent = utterances.map(u => u.text).join('\n');
+    const maxLength = titleType === 'main' ? 8 : 30;
+
+    setIsGeneratingTitle(true);
+    try {
+      const res = await scriptApi.generateTitle({
+        scriptContent,
+        titleType,
+        maxLength,
+      });
+      if (titleType === 'main') {
+        setMainTitle(res.title);
+      } else {
+        setSubTitle(res.title);
+      }
+      toast.success(`${titleType === 'main' ? '大标题' : '小标题'}生成成功`);
+    } catch (e) {
+      const msg = e instanceof Error ? e.message : '生成失败';
+      toast.error(msg);
+    } finally {
+      setIsGeneratingTitle(false);
+    }
+  };
   const setMainTitlePreset = (value: string) => {
     useProjectStore.setState({ mainTitlePreset: value });
     saveMetaToLocalFile({ mainTitlePreset: value });
@@ -318,14 +351,24 @@ export default function SubtitleBurning() {
         {/* 大标题设置 */}
         <div className="style-section">
           <label className="panel-label">大标题样式</label>
-          <input
-            type="text"
-            className="title-input"
-            placeholder="输入大标题"
-            value={mainTitle}
-            onChange={(e) => setMainTitle(e.target.value)}
-            maxLength={8}
-          />
+          <div className="title-input-row">
+            <input
+              type="text"
+              className="title-input"
+              placeholder="输入大标题"
+              value={mainTitle}
+              onChange={(e) => setMainTitle(e.target.value)}
+              maxLength={8}
+            />
+            <button
+              className="btn btn-ghost title-generate-btn"
+              onClick={() => handleGenerateTitle('main')}
+              disabled={isGeneratingTitle}
+              title="根据脚本内容智能生成大标题"
+            >
+              {isGeneratingTitle ? '生成中...' : '智能生成'}
+            </button>
+          </div>
           <div className="style-presets main-title-presets">
             {MAIN_TITLE_PRESETS.map(preset => (
               <button
@@ -357,14 +400,24 @@ export default function SubtitleBurning() {
         {/* 小标题设置 */}
         <div className="style-section">
           <label className="panel-label">小标题样式</label>
-          <input
-            type="text"
-            className="title-input"
-            placeholder="输入小标题"
-            value={subTitle}
-            onChange={(e) => setSubTitle(e.target.value)}
-            maxLength={30}
-          />
+          <div className="title-input-row">
+            <input
+              type="text"
+              className="title-input"
+              placeholder="输入小标题"
+              value={subTitle}
+              onChange={(e) => setSubTitle(e.target.value)}
+              maxLength={30}
+            />
+            <button
+              className="btn btn-ghost title-generate-btn"
+              onClick={() => handleGenerateTitle('sub')}
+              disabled={isGeneratingTitle}
+              title="根据脚本内容智能生成小标题"
+            >
+              {isGeneratingTitle ? '生成中...' : '智能生成'}
+            </button>
+          </div>
           <div className="style-presets sub-title-presets">
             {SUB_TITLE_PRESETS.map(preset => (
               <button