[ Objective] To optimize the extraction process of polysucuharidee from Dendrobium huoshaneme. [ Method] Effects of extraction time, solid-liquid ratio and ethanol concentration on the extraction rate of polysaccharides from D. huoshaneme were studied by single factor test. Relationship between the process parameters and response value was studied by response surface methodology. And the optimal extraction process was forecasted. [Result] The optimal extraction process of polysaccharides from D. huoshanense was 1:340(g/ml) solid-liquid ratio, 3.25 h extraction time and 86% ethanol concentration. Under this condition, the theoretical extraction rate of polysaccharides from D. huos-hanense reached 39.10%. And the measured value was 38.78% , which was close to the predictive value. [Conclusion] Extraction process optimized by response surface methodology was accurate and reliable with high extraction rate, which provided reference for the production of preparations.%[目的]优化霍山石斛多糖的提取工艺.[方法]通过单因素试验,研究了浸提时间、料液比和乙醇浓度对霍山石斛多糖提取的影响；通过3因素3水平的响应面分析法,分析了各工艺参数与响应值之间的关系,并由此预测并验证最佳的工艺条件.[结果]霍山石斛多糖提取的最佳工艺条件为:料液比为1∶340(g/ml),提取时间为3.25 h,沉淀多糖的乙醇浓度为86％；该条件下霍山石斛多糖的理论提取率为39.10％,实测值为38.78％,与预测值接近.[结论]采用响应面法优化得到的提取条件准确可靠,并且提取率较高,为制剂生产提供了参考.
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