目的 采用正交试验法优化人参提取物的带式干燥工艺。方法 以人参皂苷Rb1、人参皂苷Re、人参皂苷Rg1总量和提取物收率为考察指标，选择加热板温度、履带速度、进料速度为考察因素，采用L9(34)正交试验确定人参提取物最佳带式干燥工艺。结果 最佳干燥工艺条件是：加热板温度110 ℃，进料速度为25 L/h，履带速度为180 mm/min。结论 带式干燥所得提取物含量高，收率稳定，适用于大规模生产。

Objective To optimize the belt drying process for ginseng extract using orthogonal test. Methods Taking the contents of ginsenoside Rb1, ginsenoside Re, ginsenoside Rg1, and extract yield as indexes, as well as heating plate temperature, track speed, and feeding speed as factors, the best belt drying process of ginseng extract was determined using L9(34) orthogonal test. Results The optimal drying process conditions were as follows: heating plate temperature of 110 ℃, feeding speed of 25 L/h, and track speed of 180 mm/min. Conclusion The extracts content is high and the yield is stable, which is suitable for mass production.