Abstract: The frother used in the flotation of molybdenum ore of Jinduicheng Molybdenum Co.，Ltd  the problem of had the complex composition， unstable quality and produced foaming during coarse roughing and sliming in concentration.It has been proved by laboratory and industrial test that the frother JM-208 can substitute fusel oil completely,improve operating conditions,technical index and reduce reagent costs.

Key words: Molybdenite, Frother JM-208, Flotation