To meet the need of gas monitoring in mine laneway environment, designed a gas monitoring system based on ZigBee technology, the chip of CC2430 is the core, and this system conquers the defect of wired sensor networks and avoids the high-energy cost of other wireless technology.The hardware design and software design method had been presented, and the result had been given. This system has the advantages of low power consumption, low cost, wireless technology and flexibility, with good prospects.