Coal mine safety is the top priority of national safety production. Especially in recent years, coal mine water disasters have occurred frequently. The hydrogeological conditions of coal mines in China are complex which have various types of water damage, such as surface water, goaf water, alluvial water and roof water. It is rare in the world, whether the area or type threatened by water or the severity of the threat of water damage. Transient electromagnetic has been widely used in the exploration of waterrich coal mines, but the interpretation of the results is still at the twodimensional level. It is often first to define the range of anomalous bodies on the crosssection, and then fall on the plan according to the relative positional relationship. So the spatial distribution of the anomalous body is poorly described and has certain limitations. This paper combines the measured data of the transient electromagnetic method in the waterrich exploration of a coal mine in Shanxi Province, and uses the Voxler platform to study the key points of threedimensional data integration, threedimensional model establishment, model terrain correction and whitening, and draws threedimensional apparent resistivity. The model shows the spatial distribution of the anomalous body, makes the results more intuitive and threedimensional, and thus better guides the safe production of coal mines.