Abstract: There is 18.25% TFe in the extremely poor hematite from Qidashan iron ore in Anshan area， main metal mineral is hematite， and the gangue mineral is mainly quartz. In order to improve the pre-selection index， a classification pre-selection tail-splitting process test was carried out. After screening with sieve size of 3 mm， dry-type high intensity magnetic pre-selection of 3~15 mm fractions was carried out by a two-roller high intensity magnetic preselection magnetic separator at double-roller speed of 1.25 m/s. The pre-concentrate was finely crushed to P80 of 1.62 mm by laboratory high pressure roller mill， and then mixed with the -3 mm size fraction of under sieve， and wet-preselected by SCG-150 wet permanent magnetic high gradient magnetic separator. The pre-selected concentrate TFe grade can reach 31.44%. The recovery rate of the operation is 83.03%， the recovery rate to the original ore is 75.60%， and the tailings with a yield rate of 56.12% and an iron grade of 8.19% are discarded. The test results provide a research basis for the development and utilization of extremely poor hematite resources.

Key words: Extremely poor hematite, Classification pre-concentration, Ultra-fine comminution, Permanent high intensity magnetic separation.