Abstract: In order to improve the economic value of the gold concentrate in a gold mine that has fairly high contents of lead and zinc,the lead and  zinc  in the gold concentrate are comprehensively recovered by the lead-zinc pre-ferential flotation process,and a detailed condition test is carried out.The flotation indexes are obtained by closed-circuit test as follows: the zinc concentrate with Zn grade of 47.50 % and Zn recovery of 71.22 %;the mixed lead-gold concentrate with Au grade of 13.36 g/t,Au recovery of 95.43 %,Ag grade of 808.63 g/t and Ag recovery of 92.03 %.The obtained mixed lead-gold concentrate can be sold as gold concentrates,and the zinc concentrate meets the requirements of the quality standard for third-class products,which improves the economic value of the gold concentrate.The process flow is simple and reasonable and can be used as the technical basis for the field production,transformation,and debugging of the gold mine.