Abstract: Shear flocculation flotation is a mineral processing method, under the high shear conditions in stirring suspension reunion and flotation to recovery. Shear flocculation is one of the effective methods in the ultrafine mineral recovery, and is using by many scholars at home and abroad in researching hematite, rhodochrosite, quartz and apatite. this paper primary studies the use of shearing ocfloatation in sorting the fine grade graphite of -200.It's grade can be increased from 89.57% to 97%. Exploring the sorting influences from the dosage of kerosene, the time of shearing agitation, the speed of mixing, the species and dosage of dispersant, pH, etc.