Abstract: The Sino-Korean heat source ring strueture system was formed gradually by uparching, contraction and shear-tension of the crust （including Archean base-ment and post-Proterozoic folded covers） caused by accumulation,ascent and diffusion of mantle thermal melts with the Shandong Peninsula as the core; it is the main activity center of heat sources （lava springs, thermal flows, thermal fluids, thermal gas and nuclear heat）. Take this heat source ring structure system for example, the authors analyse the relation of uranium deposits with the system, features of their distribution, mineralization ring and ring structure nodes, mode, of occurrence of the uraniumgenerating heat source body and denudation coefficient, image geomorphological area, intermediate tectonic domain and trinity-type mineralization area of "mixing-combination—integration" as well as a three-dimensional mechanism of uranium in terms of time, space and origin on which basis new theories of exploration for unranium deposits may developed and the new direction in uranium prospecting may be pointed out.