diff --git a/app/api/scene-fusion/route.ts b/app/api/scene-fusion/route.ts
index b03f92e..990c5b8 100644
--- a/app/api/scene-fusion/route.ts
+++ b/app/api/scene-fusion/route.ts
@@ -17,9 +17,11 @@ import sharp from "sharp";
 // 请求体 Schema
 const sceneFusionRequestSchema = z.object({
   productImage: z.string().min(1, "产品图不能为空"),
+  productName: z.string().optional(), // 产品名称（如"沙发"）
   scenes: z.array(z.object({
     id: z.string(),
     image: z.string().min(1, "场景图不能为空"),
+    targetName: z.string().optional(), // 背景中需要被替换的物体名称（如"椅子"）
     customPrompt: z.string().optional(),
   })).min(1, "至少需要一个场景图").max(20, "最多支持20个场景图"),
 });
@@ -220,22 +222,56 @@ async function callAlibabaImageAPI(
   return generatedImageUrl;
 }
 
+/**
+ * 构建智能提示词
+ * @param defaultPrompt - 默认提示词模板
+ * @param productName - 产品名称（如"沙发"）
+ * @param targetName - 背景中需要被替换的物体名称（如"椅子"）
+ * @param customPrompt - 用户补充的关键词
+ */
+function buildPrompt(
+  defaultPrompt: string,
+  productName?: string,
+  targetName?: string,
+  customPrompt?: string
+): string {
+  let prompt = defaultPrompt;
+  
+  // 如果用户提供了具体的产品名称和被替换物体名称，构建更精确的提示词
+  if (productName && targetName) {
+    prompt = `将图1中的"${productName}"替换掉图2场景中的"${targetName}"，保持"${productName}"的外观、颜色和细节不变，自然融合到图2的环境中。`;
+  } else if (productName) {
+    prompt = `将图1中的"${productName}"融合到图2的场景中，保持"${productName}"的外观、颜色和细节不变，自然融合到图2的环境中。`;
+  } else if (targetName) {
+    prompt = `将图1的产品替换掉图2场景中的"${targetName}"，保持图1产品的外观、颜色和细节不变，自然融合到图2的环境中。`;
+  }
+  
+  // 添加用户补充的关键词
+  if (customPrompt) {
+    prompt = `${prompt} ${customPrompt}`;
+  }
+  
+  return prompt;
+}
+
 /**
  * 处理单个场景
  */
 async function processScene(
   productImageUrl: string,
   sceneImageUrl: string,
+  productName: string | undefined,
+  targetName: string | undefined,
   customPrompt: string | undefined,
   defaultPrompt: string,
   baseURL: string,
   apiKey: string,
   modelId: string
-): Promise<{ thumbnail: string; original: string }> {
-  // 组合提示词
-  const prompt = customPrompt 
-    ? `${defaultPrompt} ${customPrompt}` 
-    : defaultPrompt;
+): Promise<{ thumbnail: string; original: string; prompt: string }> {
+  // 构建智能提示词
+  const prompt = buildPrompt(defaultPrompt, productName, targetName, customPrompt);
+  
+  console.log(`[SceneFusion] Built prompt: ${prompt}`);
   
   // 调用阿里生图 API
   const generatedImageUrl = await callAlibabaImageAPI(
@@ -250,7 +286,7 @@ async function processScene(
   // 下载并上传到 S3
   const uploaded = await downloadAndUploadToS3(generatedImageUrl, "scene-fusion");
   
-  return uploaded;
+  return { ...uploaded, prompt };
 }
 
 export async function POST(request: Request) {
@@ -285,7 +321,7 @@ export async function POST(request: Request) {
       );
     }
     
-    const { productImage, scenes } = parseResult.data;
+    const { productImage, productName, scenes } = parseResult.data;
     
     // 检查场景数量限制
     if (scenes.length > config.maxScenes) {
@@ -296,7 +332,8 @@ export async function POST(request: Request) {
     }
     
     console.log(`[SceneFusion] Processing ${scenes.length} scenes for user ${session.user.id}`);
-    console.log(`[SceneFusion] Using prompt: ${config.defaultPrompt.substring(0, 50)}...`);
+    console.log(`[SceneFusion] Product name: ${productName || '(not specified)'}`);
+    console.log(`[SceneFusion] Using default prompt: ${config.defaultPrompt.substring(0, 50)}...`);
     
     // 4. 获取阿里生图模型配置
     const allModels = await getEnabledAiModelsWithProvider();
@@ -343,6 +380,7 @@ export async function POST(request: Request) {
       console.log(`[SceneFusion] Scene ID: ${scene.id}`);
       console.log(`[SceneFusion] Product Image URL: ${productImageUrl.substring(0, 80)}...`);
       console.log(`[SceneFusion] Scene Image URL: ${scene.imageUrl.substring(0, 80)}...`);
+      console.log(`[SceneFusion] Target Name: ${scene.targetName || '(not specified)'}`);
       console.log(`[SceneFusion] Custom Prompt: ${scene.customPrompt || '(none)'}`);
       
       // 如果不是第一张图，等待5秒
@@ -355,6 +393,8 @@ export async function POST(request: Request) {
         const result = await processScene(
           productImageUrl,
           scene.imageUrl,
+          productName,
+          scene.targetName,
           scene.customPrompt,
           config.defaultPrompt,
           provider.baseUrl,
@@ -371,9 +411,7 @@ export async function POST(request: Request) {
             thumbnailUrl: result.thumbnail,
             originalUrl: result.original,
             imageSize: "2K",
-            prompt: scene.customPrompt 
-              ? `[场景裂变] ${config.defaultPrompt} ${scene.customPrompt}` 
-              : `[场景裂变] ${config.defaultPrompt}`,
+            prompt: `[场景裂变] ${result.prompt}`,
             modelId: model.modelId,
           });
           console.log(`[SceneFusion] ✅ Saved image to gallery: ${result.original.substring(0, 80)}...`);
diff --git a/components/scene-fusion-view.tsx b/components/scene-fusion-view.tsx
index 3aca289..9ed3d80 100644
--- a/components/scene-fusion-view.tsx
+++ b/components/scene-fusion-view.tsx
@@ -28,6 +28,7 @@ export interface SceneItem {
   id: string;
   image: string; // 场景图 URL 或 Base64
   customPrompt: string; // 该场景的补充关键词
+  targetName: string; // 背景中需要被替换的物体名称
   status: 'pending' | 'processing' | 'completed' | 'failed';
   result?: string; // 生成结果缩略图 URL
   originalUrl?: string; // 生成结果原图 URL（用于下载）
@@ -56,6 +57,7 @@ export function SceneFusionView({ onBack }: SceneFusionViewProps) {
   
   // 状态管理
   const [productImage, setProductImage] = useState<string | null>(null);
+  const [productName, setProductName] = useState<string>(""); // 产品名称（如"沙发"）
   const [scenes, setScenes] = useState<SceneItem[]>([]);
   const [isProcessing, setIsProcessing] = useState(false);
   
@@ -104,6 +106,7 @@ export function SceneFusionView({ onBack }: SceneFusionViewProps) {
           id: Math.random().toString(36).substring(7),
           image: e.target?.result as string,
           customPrompt: "",
+          targetName: "", // 背景中需要被替换的物体名称
           status: 'pending'
         };
         setScenes(prev => [...prev, newScene]);
@@ -127,6 +130,13 @@ export function SceneFusionView({ onBack }: SceneFusionViewProps) {
     ));
   };
 
+  // 更新场景中需要被替换的物体名称
+  const updateSceneTargetName = (id: string, targetName: string) => {
+    setScenes(prev => prev.map(scene => 
+      scene.id === id ? { ...scene, targetName } : scene
+    ));
+  };
+
   // 开始裂变
   const startFusion = async () => {
     if (config?.enabled === false) {
@@ -161,9 +171,11 @@ export function SceneFusionView({ onBack }: SceneFusionViewProps) {
         },
         body: JSON.stringify({
           productImage,
+          productName: productName || undefined, // 产品名称
           scenes: scenesToProcess.map(s => ({
             id: s.id,
             image: s.image,
+            targetName: s.targetName || undefined, // 背景中需要被替换的物体名称
             customPrompt: s.customPrompt || undefined,
           })),
         }),
@@ -235,9 +247,11 @@ export function SceneFusionView({ onBack }: SceneFusionViewProps) {
         },
         body: JSON.stringify({
           productImage,
+          productName: productName || undefined,
           scenes: [{
             id: scene.id,
             image: scene.image,
+            targetName: scene.targetName || undefined,
             customPrompt: scene.customPrompt || undefined,
           }],
         }),
@@ -370,6 +384,20 @@ export function SceneFusionView({ onBack }: SceneFusionViewProps) {
                     </div>
                   )}
                 </div>
+                
+                {/* 产品名称输入 */}
+                {productImage && (
+                  <div className="mt-2">
+                    <Input 
+                      placeholder="产品名称（如：沙发、椅子、花瓶）" 
+                      value={productName}
+                      onChange={(e) => setProductName(e.target.value)}
+                      className="h-9 text-sm"
+                      disabled={isProcessing}
+                    />
+                    <p className="text-xs text-muted-foreground mt-1">输入产品名称可以让 AI 更精准理解</p>
+                  </div>
+                )}
               </div>
 
               {/* 2. 场景图列表 */}
@@ -417,7 +445,7 @@ export function SceneFusionView({ onBack }: SceneFusionViewProps) {
                           <img src={scene.image} alt={`场景 ${index + 1}`} className="w-full h-full object-cover" />
                         </div>
                         
-                        {/* 关键词输入 */}
+                        {/* 输入区域 */}
                         <div className="flex-1 space-y-1.5">
                           <div className="flex items-center justify-between">
                             <span className="text-xs font-medium text-muted-foreground">场景 {index + 1}</span>
@@ -433,10 +461,17 @@ export function SceneFusionView({ onBack }: SceneFusionViewProps) {
                             )}
                           </div>
                           <Input 
-                            placeholder="补充关键词：如'放在木桌上'" 
+                            placeholder="被替换物体（如：椅子、桌子）" 
+                            value={scene.targetName}
+                            onChange={(e) => updateSceneTargetName(scene.id, e.target.value)}
+                            className="h-7 text-xs"
+                            disabled={isProcessing}
+                          />
+                          <Input 
+                            placeholder="补充关键词（可选）" 
                             value={scene.customPrompt}
                             onChange={(e) => updateScenePrompt(scene.id, e.target.value)}
-                            className="h-8 text-xs"
+                            className="h-7 text-xs"
                             disabled={isProcessing}
                           />
                         </div>