diff --git a/application/services/video_generation_service.go b/application/services/video_generation_service.go
index 938c40b..9e1ae77 100644
--- a/application/services/video_generation_service.go
+++ b/application/services/video_generation_service.go
@@ -505,6 +505,18 @@ func (s *VideoGenerationService) GenerateVideoFromImage(imageGenID uint) (*model
 		return nil, fmt.Errorf("image is not ready")
 	}
 
+	// 获取关联的Storyboard以获取时长
+	var duration *int
+	if imageGen.StoryboardID != nil {
+		var storyboard models.Storyboard
+		if err := s.db.Where("id = ?", *imageGen.StoryboardID).First(&storyboard).Error; err == nil {
+			duration = &storyboard.Duration
+			s.log.Infow("Using storyboard duration for video generation",
+				"storyboard_id", *imageGen.StoryboardID,
+				"duration", storyboard.Duration)
+		}
+	}
+
 	req := &GenerateVideoRequest{
 		DramaID:      fmt.Sprintf("%d", imageGen.DramaID),
 		StoryboardID: imageGen.StoryboardID,
@@ -512,6 +524,7 @@ func (s *VideoGenerationService) GenerateVideoFromImage(imageGenID uint) (*model
 		ImageURL:     *imageGen.ImageURL,
 		Prompt:       imageGen.Prompt,
 		Provider:     "doubao",
+		Duration:     duration,
 	}
 
 	return s.GenerateVideo(req)
diff --git a/pkg/video/chatfire_client.go b/pkg/video/chatfire_client.go
index f8a9cb9..78a7a85 100644
--- a/pkg/video/chatfire_client.go
+++ b/pkg/video/chatfire_client.go
@@ -146,13 +146,23 @@ func (c *ChatfireClient) GenerateVideo(imageURL, prompt string, opts ...VideoOpt
 		reqBody := ChatfireDoubaoRequest{
 			Model: model,
 		}
+
+		// 构建prompt文本（包含duration和ratio参数）
+		promptText := prompt
+		if options.AspectRatio != "" {
+			promptText += fmt.Sprintf("  --ratio %s", options.AspectRatio)
+		}
+		if options.Duration > 0 {
+			promptText += fmt.Sprintf("  --dur %d", options.Duration)
+		}
+
 		// 添加文本内容
 		reqBody.Content = append(reqBody.Content, struct {
 			Type     string                 `json:"type"`
 			Text     string                 `json:"text,omitempty"`
 			ImageURL map[string]interface{} `json:"image_url,omitempty"`
 			Role     string                 `json:"role,omitempty"`
-		}{Type: "text", Text: prompt})
+		}{Type: "text", Text: promptText})
 
 		// 处理不同的图片模式
 		// 1. 组图模式（多个reference_image）