In light that a gold ore contains much slime and many barren and associate bodies and gold dissemination particle size is fine,cyclone is used for flotation roughing concentration grading composing a flotation-cyclone grading joint flowsheet and achieves good outcome.Industrial production results show that it can quickly and efficiently recover most monomer gold and goldbearing pyrite from flotation roughing concentrates and improve gold recovery rate to use cyclone for grading of flotation roughing concentrates.The shortcone cyclone can achieve better gold recovery rate than grading hydraulic cyclone,which is 75.04 %.