Abstract: The damage mechanics of Jointed rock mass is a promising researchfield,The Jointed rock mass is a geological matrix with complex stress historyand deformation history. Compared with other engineering materials, jointed rockmass is more uncertain,more peculiar and more complex on its mechanical characteristics. For these reasons,there are a lot of basic problems which havenot been solved yet in the research field of damnage mechanics of rock mass. This paper discusses some important problems in this field,an...