Abstract: The constructing of 3D geological fault structure mode,which plays a great role in the geological analysis,is a pivotal task for 3D geological modeling.Basing on the study of the wire-frame model,this paper improved the wire-frame model structure and the method,which takes the model as its foundation,of building fault structure model.Furthermore,the article also gives emphasis to solving the key algorithm of constructing the block model,and finally reached the achievement of converting the face structure mo...