Abstract: An iron ore in Jiangxi province was not taken full advantage due to its low iron grade and fine granularity. Experimental research was carried out on the iron ore by using combined magneto-gravity separation flowsheet as stage-grinding and stage concentration. Finally get the iron grade of the final iron concentrate about 62%，and iron recovery about 65%.

Key words: High gradient magnetic separators, Centrifugal separator, Combined magneto-gravity flowsheet