Abstract: Through the geological conditions and characterization of the metallogenicity of key metals such as copper-nickel-cobalt-niobium (CuNiCoNb) in Dongkunlun, it is believed that CuNiCoNb ores were mainly formed in the Zhiliu-Devonian period and were controlled by the evolution of the Proto-Tethys. The Proto-Tethys ocean subducted and closed to the north, dragging the East Kunlun and Qaidam land masses to the north by subduction and collision, the East Kunlun land mass subducted to the north with the Qaidam land mass →collision→post-collision extension and the Qaidam land mass subducted to the north with the Oulongbruk land mass → collision → post-collision extension, due to crustal and mantle material inhomogeneity, the plate was torn by the north-easterly direction near the longitudes of 93 ° and 98 ° east to form the Sharikhaimu mega CuNiCo The geophysical and geochemical characteristics show that the mantle source material makes an important contribution to the mineralization fluid and mineralization of CuNiCoNb deposits, and the mineralization process is closely related to the upwelling of the lithospheric mantle, and the preliminary study suggests that porphyry-silicate-type copper ores are originated from the process of collision and post-collision stretching orogeny with shell-mantle mixing, and magma-type copper-nickel-cobalt ores are formed by collision and post-collision stretching orogeny. Preliminary research suggests that porphyry-silicate copper ores come from crust-mantle mixing during collision-collision post-extensional orogeny, magmatic CuNiCo ores come from the upwelling of mantle source material after plate breakage, and carbonate niobium ores come from the enrichment of plate breakage.