With Platycodon root as experiment material, on the base of single factor experiments (extraction time, extraction tempe以桔梗为实验材料,在提取温度、提取时间、料液比等单因素实验的基础上,利用响应曲面实验设计法对桔梗皂甙提取条件进行研究,并通过回归方程和响应曲面,得到了最佳提取工艺。