Abstract: Graphite flotation concentrate with particle size under -0.2 mm is worthless. However, after spheroidization and purification, the nature graphite could be widespread used as the battery material and wastewater purification material due to its unique physicochemical characteristics and particle feature. And then the value will be improved obviously. The graphite spheroidization technology is the key technology for the production. In this paper, the graphite flotation concentrate of the test sample is from Northeast China, and the particle size of the test sample is fine. The effects of spheroidization conditional parameters such as course grinding, fine grinding and shaping using series micropowder grinding equipments were studied. The results indicates that the best course grinding stage is 5, the best fine grinding stage is 8 and the best shaping stage is 16, and the spherical graphite product of D₅₀=15.99 μm can be got with the tap density 1.06 g/cm³ and with the yield of 52.73%. It is according with the NG-Ⅱ technical standard of negative materials of lithium ion battery of natural graphite (GBT-24533-2009, China). The study provides technical basis for the graphite spheroidization of this kind of graphite resources.