N-doped　hollow　carbon　nanospheres　(HCNSs)　were　prepared　by　electric　arc　discharge　method　in　N-2　atmosphere.　X-ray　Photoelectron　Spectroscopy　(XPS)　analysis　shows　that　their　nitrogen　content　reaches　up　to　4.9　atom%.　Both　the　low　thermal　conductivity　of　N-2　and　the　doping　of　nitrogen　atom　make　carbon　unit　bend　to　form　hollow　nanosphere　structure.　High-resolution　transmission　electron　microscopy　(HRTEM)　and　X-ray　diffusion　(XRD)　analysis　prove　the　presence　of　detected　defects　and　a　poor　crystallinity　on　the　HCNSs　shell.　Moreover,　annealing　treatment　of　HCNSs　was　carried　out　at　1100　degrees　C/10　h　and　1400　degrees　C/2　h　to　research　their　fracture　extension.　It　is　found　that　HCNSs　could　grow　into　closed-tubes　even　with　a　shell　at　high　annealing　temperature.　HCNSs　were　applied　in　direct　borohydride　fuel　cell　(DBFC)　to　evaluate　their　catalytic　performance.　The　electrochemical　results　show　that　pure　HCNSs　doesn＇t　have　any　catalysis　effect,　but　they　can　greatly　promote　the　catalytic　performance　of　CoO,　and　the　largest　polarization　current　density　of　which　achieves　1.845　A.cm(-2)　at　-0.7　V　(vs.　Hg/HgO　electrode).