目的 研究利用太白楤木根皮生产齐墩果酸的工艺。方法采用正交实验设计，以高效液相色谱法测定齐墩果酸的含量。结果 发现影响生产的因素主要为水解酸度、水解时间、预处理、药材规格等，不同工艺的产量可相差3倍。结论 太白楤木根皮切成3 cm小段，预发酵48 h，水解酸度为7%，水解时间为5 h的工艺产量最高；而粗粉不发酵，酸度7%，水解4 h为最实用的生产工艺。

OBJECTIVE To study the production technology of oleanolic acid from the root bark of Aralia taibaiensis. METHODS Orthogonal design was adopted,and the content of oleanolic acid ws determined by RP-HPLC. RESULTS Production were affected mainly by acidity and time of hydrolysis,pretreatment and the size of crude drug.Different technology resulted in 4 times variance in the yield of oleanolic acid. CONCLUSION The highest production was resulted from 3 cm length of crude drug,prefermentation for 48 h,7% acidity and hydrolysis for 5 h,while the most optimal production technology was obtained from nonfermented coarse powder of crude drug,7% acidity and hydrolysis for 4 h.