Nitrogen-doped　carbon　has　been　proved　to　be　able　to　improve　the　cathode　performance　of　lithium　ion　batteries　(LIBs).　As　a　cathode　material,　LiFePO4　(LFP)　has　been　widely　used　for　LIBs.　However,　it　needs　higher　quantity　of　conductive　carbons　to　enhance　its　electrochemical　performances　due　to　the　low　ion　diffusion　coefficient　and　poor　electronic　conductivity.　Herein,　we　demonstrate　a　one-step　and　facile　synthetic　route　of　nitrogen-doped　graphite　carbon　(NGC)　for　coating　the　LFP　particles.　It　derives　from　the　chitosan　precursor　by　freeze　drying　technology　and　annealing　at　600-800　A　degrees　C.　Raman　spectroscopy　and　high-resolution　transmission　electron　microscopy　indicate　the　coating　layer　is　the　graphite　carbon　with　a　single　layer　nature.　X-ray　photoelectron　spectroscopy　test　proves　the　existence　of　C-N　or　C=N　(285.2　eV)　bonding　in　the　graphite　carbon.　After　coating,　the　LFP@NGC　cathode　achieves　a　specific　capacity　of　similar　to　155.5　mAh　g(-1)　with　Coulombic　efficiency　similar　to　97%　at　0.1　C.　The　cell　has　a　capacity　of　63.2　mAh　g(-1)　at　5　C　after　100　cycles　with　Coulombic　efficiency　and　capacity　retention　ratio　of　similar　to　100%.　This　work　offers　a　new　and　facile　route　to　fabricate　NGC　for　the　energy　storage.