Abstract:To extract two efficient parts with macroreticular resin; To determine the content of total Flavonoids with UV-spectrophometry. To measure their anti-oxidation by means of pyrogallol oxidation .The results showed that total flavonoids in two efficient parts are 3.055%±0.068% and 38.80%±0.066% respectively; both parts have activity of anti-oxidation. Functions of decreasing blood sugar and anti-myocardial ischemia have something to do with the anti-oxidation action.