Abstract:The high density resistivity method is a mature method of engineering geophysical prospecting, which is widely used in geological hazard investigation. Abandoned mines are easy to cause landslide geological disasters in bad weather conditions. The landslide formed by artificial accumulation of waste slag stone and miscellaneous filling soil have been investigated, and the investigation effect of high density resistivity method in this environment has been studied. By analyzing the cross section map of resistivity inversion, geological structure information, such as the depth of sliding surface and the shape of sliding bed have been deduced, which provides the basis for the design of landslide control in abandoned mines. The drilling verification shows that the high density resistivity method can effectively infer the depth of sliding surface and the fluctuation pattern of slide bed, and can be used for landslide hazard investigation in abandoned mines.