Objective:The prescription of traditional Chinese medicine-antidepressants in nine kinds of Chinese herbal medicine for extraction.Methods:ethanol was used as solvent extraction,orthogonal experiments carried out,with the yield of dry extract as the optimum extracting condition of the nine herbs index screening Bupleurum etc.Results:Select 75% ethanol through experiment,heated to reflux for 2 hours,with 8 times the amount of ethanol,refluxing and extracting for 3 times.Conclusion:The process design is reaso...