The Xiongmei area is located in the Shenzha County in the middle part of the Bangong Co- Nujiang metallogenic belt in Tibet comprising many different types of copper- bearing magmatic rocks. These include Shesuo skarn copper polymetallic deposits, Xiongmei porphyry copper- molybdenum deposits, Sangri karn copper deposits and Kuga skarn copper deposits. In this paper, the chronology and genetic types of these copper- bearing magmatic rocks have been determined by systematic zircon U- Pb age determinations, whole- rock Pb isotope, and petrogeochemical analysis. Preliminary data indicates that they were formed in successive magmatic stages dated to ~110 Ma (Shesuo, Xiongmei, Kuga) and 80 Ma (Sangri). The ore- bearing granodiorite porphyry in the Xiongmei mining area is an S- type granite formed from argillaceous sedimentary rocks with high aluminium and calc- alkaline characteristics. The ore- bearing rocks in the Shesuo, Sangri and Kuga mining areas are I- type, indicating that the original rocks were igneous. Geochemical analyses shows that these ore- bearing rocks are rich in large ion lithophile elements (Rb, Sr, Th, Pb) and depleted in high field strength elements (Nb, Ta, Ti), indicating that the subducted sediment components have had an important influence on magma formation. During the early Cretaceous, the subducted plate fragments broke off, a large number of asthenospheric material upwelled and participated in magmatic activities. This triggered the melting of upper crustal components and formed ore- bearing magmatic rocks with a large number of ore- forming elements, forming Xiongmei, Shesuo and Sangri deposits near the surface. During the late Cretaceous, the thickened lithosphere was dismantled and subsided under the action of gravity. The thin lithosphere melted under the underthrust of the upwelling mantle, forming the Sangri deposits.