Shanxi Jingu Coal Mine is located in the northern part of Guxian mining area on the central and western edge of Qinshui coalfield. Faults and collapse columns are widely developed in the mine field. If the exploration is not clear, it is easy to cause roof caving, rib spalling and other surrounding rock instability accidents in the mining process. It will also lead to deep aquifers, induce large-scale permeable disasters, and pose a serious threat to mine safety production and personnel safety. In order to accurately find out the distribution characteristics of geological structure in the working face of Jingu Mine, this paper took No.10905 Face of Jingu Mine as the research object, and used two geophysical prospecting technologies with different principles of three-dimensional seismic exploration and radio wave tunnel perspective to carry out joint detection. The detection data of the two technologies were comprehensively compared, cross-validated and systematically interpreted. The results showed that the combined geophysical prospecting technology effectively improved the detection accuracy of small faults and concealed collapse columns in the working face, realized the accurate identification of the geological structure of the production mine working face, and provided a reliable geological basis for the subsequent safe mining.