In order to integrate seamlessly with the weapon communication system,a designing method to WINCE-based CAN moduleof vehicle recorder is proposed.The hardware architecture with high ant-i interference ability is firstly designed,then the rea-ltime embedded operation system WINCE is implanted into,and the method which adopt the event response mechanism is used tosupport the high and effective performance of the CAN module.Now the method has been successfully applied in a certain weaponsystem,the result of the experiment shows that it is flexible and robust.