基于北斗/GPS双模定位模块设计了一套汽车燃油监测报警系统，当监测到车辆油箱内的燃油油位发生异常变化时，通过报警器进行报警并向指定手机发送告警消息及车辆位置信息。当司机遇到突发紧急情况时，可以通过安装在驾驶室内的紧急报警按钮向指定号码一键求救。-a set of vehicle fuel monitoring alarm system based on beidou/GPS positioning module the is designed in this paper, when the monitoring fuel oil level abnormal changes inside the fuel tank, the alarm system can send alarm messages and vehicle location information to the designated mobile phone. When the driver meet the emergency, he can push the emergency alarm button ,which installed in the driving room for help.