Abstract: To select appropriate application method, 5 kinds of herbicides were used alone or mixed. Before the emergence, 75% Thifensulfuron W G and 96% S-metolachlor E C mixing effect was better than using the effect of 50% acetochlor; And after the emergence, 10% Fluoroglycofen and 15% fluazifop-p-butyl mixing effect was better than the single used of them. From the consideration on the safety of kidney bean, closed treatment of soil security was better than the stem leaf treatment reagent.