diff --git a/pkg/service/cast/work.go b/pkg/service/cast/work.go
index 9fe171f..92c72ee 100644
--- a/pkg/service/cast/work.go
+++ b/pkg/service/cast/work.go
@@ -260,12 +260,23 @@ func processContentAndAutoTags(ctx *gin.Context, content string) (string, error)
 	)
 	if err != nil {
 		return content, err
-	} else if needMore && len(newTags) > 0 {
+	}
+
+	if resp == nil {
+		return content, nil
+	}
+
+	// 保存新生成的标签到数据库
+	if needMore && len(newTags) > 0 {
 		if saveErr := SaveTagsToDatabase(ctx, newTags, 4); saveErr != nil {
 			zap.L().Error("processContentAndAutoTags SaveTagsToDatabase failed", zap.Error(saveErr))
 			return content, errors.New("自动生成标签保存到数据库失败")
 		}
 	}
+	// 检查一下 resp.Post 是否为空
+	if resp.Post == "" {
+		return content, nil
+	}
 	zap.L().Info("processContentAndAutoTags ", zap.Any("resp", resp))
 	return resp.Post, nil
 }