The regional characteristic of geologic structure,especially the quality, range and process of tectogenesis possess quite a large controlltion to the lithofacies feature of local sediment,the extent of fracture and the hydrogeologic condition which are in close rlationship with the thickness,temperature of permafrost,the cryogenic composition and the distribution,compose of cryogenic phenomenon. In this paper geologic structure why to influence permafrost was dealed with and illustrate regional diffrence of geologic structure to the influence of the distribution continuity temperature and thickness of permafrost the cryogenic composition and the cryogenic phenomenon.