Abstract: Seismic in-seam wave exploration technology can effectively detect the development characteristics of geological structures such as faults in coal seams.Three-dimensional geological modeling can visually display the location and characteristics of geological space such as structures and strata, and improve the transparency and intelligence of working faces.In order to ensure the safe and efficient mining of 215 working face in Longde Coal Mine, seismic in-seam wave and three-dimensional geological modeling technology are used for analysis.The results show that five anomalies in the working face are delineated based on the 215 working seismic in-seam wave energy CT imaging map.Comparing the results of roadway exposure and geophysical exploration, 5 faults in the study area were determined.Based on the results of geophysical prospecting, drilling and measurement, the monoclinic structure characteristics of coal seam in 215 working face are determined as “high in the northeast and low in the southwest”,and the coal thickness is characterized as “thick in the east and west and thin in the middle”.The 3D geological model of working face is constructed, which effectively guarantees the safe and efficient mining of working face.