Abstract: With the developing of technique and the achievement of research project, the real three dimensional numerical modeling method has been applied the rock mechanics teaching practice. The potential of teaching resource were promoted, and the numerical test of rock mechanics, deformation and failure of rock. Many mechanical phenomenon which can not observed in physical experiment were modeled, for example, the rocks three dimensional structure, rock failure process, and blocks slip etac. It is useful to improve the students’ ability in practice and interesting in science, encouraging student to make good understanding of subject, and increase the quality of rock mechanical experiment.