Abstract: With the large-scale industrial exploitation,high-grade iron ore is being increasingly scarce.In order to ensure the balance of the supply and need of iron ore the current poor ore has become the main source of iron ore.But the traditional sorting equipment sorting efficiency is not high,and cannot effectively separate iron ore and gangue minerals.Therefore,in order to solve the above problems,this paper develops a new type of vertical permanent magnet selection machine,which explores the separation of iron minerals from gangue minerals in the process of mineral sorting come out.With the permanent magnet magnetic separator replacing the electromagnetic magnetic separator improves the sorting index at the same time,achieves energy saving goals,and through a series of selected tests to verify the new vertical magnetic selection machine magnetic effect.In this paper,the structure,magnetic system and sorting principle of this magnetic separator are introduced,and the experiment is carried out.The results show that the grade of concentrate is 66.02%,the recovery rate of concentrate is 99% and the tailings grade is 7.05% when the grade of ore is 60.97%.The qualified product is obtained and the requirements of industrial production are achieved.The selection device of vertical permanent magnet machine is proper,the sorting effect is good,and it is promising in the practical application.