[Objective] To optimize the extraction conditions of chromones from Saposhnikovia divaricata(Turcz.) Schischk.by microwave.[Method] The contents of prim-O-glucosylcimifugin and 5-O-methylvisammioside were taken as indicating indices;and the effects of solid-liquid ratio,ethanol concentration,extraction time and temperature on chromones content were studied.[Result] The optimal microwave condition was as follows:1:30(g/ml) solid-liquid ratio,70% ethanol concentration,90 ℃ extraction temperature and 3 min extraction time.[Conclusion] The extraction of chromones from S.divaricata by microwave was found to be a rapid and efficient extraction method with short time and high extraction rate. [Objective] To optimize the extraction conditions of chromones from Saposhnikovia divaricata (Turcz.) Schischk. By microwave. [Method] The contents of prim-O-glucosylcimifugin and 5-O-methylvisammioside were taken as indications; and the effects of solid -liquid ratio, ethanol concentration, extraction time and temperature on chromones content were studied. [Result] The optimal microwave condition was as follows: 1: 30 (g / ml) solid-liquid ratio, and 3 min extraction time. [Conclusion] The extraction of chromones from S.divaricata by microwave was found to be a rapid and efficient extraction method with short time and high extraction rate.