Abstract: In order to solve the problem that miner is difficult to escape or be rescued without the electricity or network. GRPM (Geomagnetic and Radio Positioning Method), a underground location method was constructed by combine underground geomagnetism with RFID radio frequency. It analyzed the geomagnetic data in underground tunnel, which have the characteristics of banded continuous and regional abrupt change. The suitability evaluation of typical roadway was carried out with some index such as the geomagnetic mean value, standard deviation and kurtosis coefficient, roughness.Location matching contrast experiment and effect analysis based on equal range matching are carried out in the adaptation zone, which about mean variance correlation (MSD), normalized product correlation (NPROD), and Hausdorff distance correlation (HD). The results proved that the standard deviation, roughness index is suitable for the suitability evaluation of roadway location, the analysis is accurate. The NPROD matching model based on the range of 1 times to 2 times is suitable for the underground dynamic positioning,satisfies the requirement of accurate positioning with faster matching.