Abstarct: The purpose of coal mining is to obtain the necessary information for the purpose of defining and precisely defining the blocks that would be profitable to extract them in the day- to- day conditions. In coal exploration, in addition to the quality of coal, the geological conditions of hydrology and engineering properties of the coal laxyer and the (containing) laxyer of the laxyer are also important and should be addressed. Due to the low penetration depth of the GPR, the thickness of the laxyer shoud not be high and with high conductivity so that the underlying laxyers can be detected. In recent years, the use of the GPS method helps to identify the objectives baxsed on the difference in the relative electrical permeability of the two environments. In the GPR method, electromagnetic waves are transmitted by a transmitter antenna to ground. The purpose of this study is to use GPS to explore the coal laxyer at the Shahrood Univesity of Technology mine campus. Therefore, profiles were selected in the area where all the coal deposits lay at ground level and were located at a slight depth from the ground. In this research, a 300 MHz gas chromatography machine was first used for harvesting. Then, by processing and applying appropriate filters to the data and translating the results, and also considering that the upper and lower waist of the coal laxyer in the study area Shale and sandstone, respectively, the depth of penetration of the GPR waves in this study was very low, but in the infinity we could determine the coal laxyer using the GPS method.