A kind of automobile tire pressure monitoring system based on ZigBee technology is designed in this paper. The system is composed of a data acquisition and transmitting module arranged in the inner of the automobile tire, and a data receiving and displaying module arranged in the automobile driving room. ZigBee wireless transmission way is used to communicate and monitor the tire pressure parameters in realtime. CC2430 is used as the data communication module in the tire pressure monitoring system, to achieve the sending and receiving data, which has the characteristics of low power, low complexity, flexible networking and can effectively avoid traffic accident caused by the tire pressure changes, and improve the safety of car travel. The automobile tire pressure monitoring system based on ZigBee in this paper has the advantages of simple layout, flexible use and stable which will has broad application prospects.