Abstract: Investigation on Mine geological environment play an important role on the mine geological environment restoration and protection, and it is very common to explore the dynamic development, theoretical research and scientific and technological innovation. According to the investigation of the geological environment and the principle of ground penetrating radar (GPR),the paper systematically expounds the GPR exploration object in the investigation of mine geological environment, discusses in detail the measurement process and result interpretation of the GPR in the practical detection of the mine geological environment problems such as fault, karst cave, mine goaf and ground fissure, at last, it puts forward some technical conclusions and suggestions. The results show that based on the difference of electrical properties among the different objects in mine geological environment, it can realize the scientific explanation of mine geological environment problem acquiring the characteristic information of the target object by GPR.