It was studied that the effects of extraction of capsorubin from Arctium Lappa L for the hot reflux and the ultrasonic-microwave assisted. At last, based on the orthogonal experiment,we determined the best extraction :the ratio of the solid to liquid 1:25, the granularity of burdock dusts 60, ultrasonic power 40 W, the microwave power 350 W, the extracting time 30 s.