Abstract: The paper briefly describes the research dynamic of micro-fine mineral flotation methods at home and abroad，including agglomerate flocculation flotation，column flotation，liquid-liquid flotation and ion flotation，pressurized or depressurized flotation，electro-flotation，comprehensive force field flotation etc..And the research directions for micro-fine mineral flotation separation are pointed out in the future as well.  

Key words: Micro-fine mineral, Flotation, Progress