Abstract: In view of problems that forecast range is small, work load of installation and maintenance is large, and real-time monitoring and early-warning cannot be provided existed in traditional temperature monitoring systems of coalfield fire area with manual detection way, a wireless remote monitoring and early-warning system of coalfield fire based on technologies of ZigBee, GPRS and Internet. Through wireless temperature measuring terminal and gateway which are set at each monitored point, the system sends collected temperature signal to GPRS network, and the signal is accessed into Internet network through SGSN and GGSN. Then server of upper computer monitoring center of the system connects with Internet network and displays the monitoring interface by web page, so as to realize function of remote monitoring and early-warning for coalfield fire area. The field test result showed that the system solves problem of remote and real-time monitoring and early-warning for coalfield fire and has certain practicality.