Abstract: According to the characteristics of the refractory Zinc oxide ores with complex size composition and dissemination size and high slime-content,after comparing schemes of the flotation,magnetic separation and roasting-magnetic separation,The experimental results indicated that to adopt this method of roasting-magnetic separation for the refractory Zinc oxide ores,the preferable index that concentrate grade of iron is 60.95% and recovery rate of iron is 80.55% respectively was obtained.