Abstract: The research and development of oily-bubble flotation opens up a new research field from the angle of method.For improving the understanding and research of oily-bubble flotation in our country,the oily-bubble flotation realization mechanism and effect has been analyzed by the introduction of oily-bubble flotation process and the analysis on the application of oily-bubble in oil sand flotation and coal slime flotation.It has been pointed out that relative to normal flotation,oily-bubble flotation has the characteristics of high recovery rate,good selectivity and so on.Thus under the background of high-tech flotation technology research need,it can be expected that to carry out theory and craft research on oily-bubble flotation will make mineral processing technology of our country upgrade to a new level,and become one of the important methods of upgrading technology research.