Abstract: The field plot trial on effect of the mixture of acetochlor and metribuzin on weeds control in soybean field were conducted at Zhangzhun during 2003 for weed control in soybean field were evaluated. The results showed that: Using the mixture at the dosage of 1049.95(g·ai)/hm2,the control effect was more than 88.52 % , and no phytotoxicity was observed to soyabean. By one time treatment, the control effect can persist in the whole growth season of soybean.