Abstract: Based on systematical rewiewing of research and application status of 3D geoscience modelling(3DGM)mothod and 3D geoscience analog software home and abroad,several key issues about opplication of 3D geoscience analog to mine are discussed including 3D geological camber construction,3D geological body's dynamic olisplay,3D space topological analysis,3D geological body's arbitrary section building and inquiry of 3D geological informations.