Due to the complexity of geological structures and surface conditions in metallic ore areas, the seismic reflection method suitable for detecting bedded media is rather limited in metallic ore exploration. In order to detect complex geological structures and concealed rock bodies and improve horizontal resolution of the seismic record, we must study the corresponding seismic techniques. For the purpose of solving the above problems, the tentative application of surface seismic tomography to metallic ore exploration has been developed. This paper sums up the basic principle of nonlinear surface seismic tomography and discusses the experimental results of its application to metallic ore exploration.