Abstract: There are a series of problems such as low grade and high cost of ore dressing and utilization of the raw ores in Bayan Obo West Mine. For the rational utilization of this iron ore resources, the ore dressing process was carried out on the basis of ore properties. The results show that the ore is treated with the raw ore dry magnetic pre-discarding tailings-high pressure roller mill-wet magnetic discarding tailings-wet weak magnetic separation process, and the qualified iron concentrate with the iron grade of 66.00% or more is obtained. The test results provide reference of the low grade iron ore efficient use.