Abstract:    Design a monitoring system to rely on accurate data positioning, which cooperate with communication technology and electronic map to achieve vehicle and monitoring center information interaction,increasing the traffic efficiency and improving the traffic congestion.Using the microprocessor ARM@ CortexTMM3 processing the satellite signal from GPS,calculating and arranging the data through GPRS module send to internet,the host computer according to program to receive the data of internet then called Google maps show the information of vehicle location in real time.With the help of the system,which can be used to analyze and manage the vehicle position in direct and convenient way.