Abstract: In this paper, the processing methods of 3D seismic data were described, combined with the mining engineering data, it further made fine geological interpretation for 3D seismic data. Through the fine geological interpretation practice of 3D seismic exploration project, combined with the validation of mining data of the late coal mine for interpretation results, it obtained the data including coal seam erosion thinning belt, coal seam thickness, roof stability and so on, which could provide a variety of reliable geological information for the design and mining of modern coal mines.