Abstract: In order to monitor environmental status of mine area effectively and avoid occurrence of safety accidents, the paper introduced a design scheme of environment monitoring platform of mine area based on M2M technology. The platform uses M2M technology to monitor temperature, humidity, gas volume fraction, soil pressure and other environmental data in mine area, which also realizes function of personnel location by use of RSSI algorithm, and adopts least square method to do curve fitting for monitored environmental data for real-time display on monitoring interface of upper computer. The experimental result showed that the platform goes well with normal communication, and the monitored data curve after fitting processing is more smooth, which reduces data error greatly.