With rapid development of lithium-ion batteries,improving electrochemical performance of graphite anode is of great importance.Modification on the coating of natural graphite can effectively improve the electrochemical properties of graphite anode.Coal-based soft asphalt has a wide range of sources and low price,which is a high-quality raw material for the preparation of coated pitch.In this paper,a method of preparing coated pitch from coal series soft asphalt is introduced and influencing factors in the test are discussed.The coated pitch can effectively improve the electrochemical performance of graphite anode,and a new way of preparing coated pitch is proposed.