diff --git a/components/message.tsx b/components/message.tsx
index 75f2f2957..7a75aba2d 100644
--- a/components/message.tsx
+++ b/components/message.tsx
@@ -301,9 +301,11 @@ const PurePreviewMessage = ({
                             </span>
                           );
                         }
+                        // 使用处理状态作为 key 的一部分，确保状态变化时 Streamdown 重新渲染
+                        const processingKey = `${isProcessingEnhance}-${isProcessingRmbg}-${isProcessingExtend}-${isProcessingAngleEdit}`;
                         return (
                           <Response 
-                            key={partIndex} 
+                            key={`${partIndex}-${processingKey}`} 
                             onImageEdit={onImageEdit} 
                             onDrawingComplete={onDrawingComplete}
                             onImageEnhance={onImageEnhance}