Roots contain about 0.93% total alkaloids, including 0.52% matrine, 0.52% oxymatrine, and trace amounts of genistein and methylgenistein. And contains sophocarpine. Flavonoids include pterosin and l- Maacacion-β-D-glucoside, and the latter is hydrolyzed by enzyme to obtain l-maacacian, both of which have anti-cancer effects, and their glycosides are stronger than aglycones, with more dextrorotators than levorotators. In addition, it also contains tonone, dauricin, dauricin, dauricin, dauricin, dauricin and dauricin. (2-[{ 3 '- hydroxy -2', 2'- methyl -8 '-(3- method -2- butenyl)} chroman -6 '- yl ]-7- hydroxy -8-(3- methyl -2- butenyl) chroman -4- one. It is reported that neutral polysaccharide is composed of D- galactose and D- glucose, and its molecular ratio is 1: 1.