In view of the problems of the vast area and multi points and the harshing environment of the wild field, this paper introduces a kind of monitoring system for permafrost geothermal in the wild based on WSN. The system includes the designs of the monitoring station in the wild and the data center. The monitoring station based on the WSN completes the transmission of monitoring data to remote server through ZigBee technology, Bluetooth serial port, and 3G.Receiving,saving,transfoming and displaying of the monitoring data realize by the data center. The experiment proved that this system can realize the realtime monitoring in highcold and highaltitude area, making the permafrost researchers learn the change of ground temperature of permafrost in time by showing the monitoring data visually.