Objective: To optimize extraction technology of effective parts from Sophora tonkinensis. Method: Taking the content of total alkaloids as index

with extraction time

extraction times

ethanol concentration and amount as factors

extraction technology of total alkaloids from S.tonkinensis was optimized by L9(34) orthogonal test;With the content of total polysaccharides as index

taking the amount of water

extraction time and times as factors

extraction technology of total polysaccharides was optimized by orthogonal test. Result: Optimal extraction technology of total alkaloids was as following:extracted 2 times with 6 times the amount of 70% ethanol

1 h per time;Optimum extraction technology of total polysaccharides was as following:extracted 3 times with 6 times the amount of water

1.0 h each time. Conclusion: This optimized extraction technology was stable and feasible

it was suitable for industrial production with a good prospect.