Sareke copper deposit in Meso-Cenozoic sedimentary basins of northwestern margin of Tarim Basin is a large-scale deposit. The tectonic location of the deposit is located in the Sarekebayi Mesozoic fault basin, which is seated between the western margin of Tuoyun Meso-Cenozoic pull-apart basin and Late Hercynian deep ocean basin in east Alai. The orebodies, with the layered and lens-like shape, occurred in the gray green conglomerate belonging to the second lithologic section of Upper Jurassic Kuzigongsu Formation. The main metallic minerals are chalcocite and malachite with weak country rock alteration. Geological characteristics and geochemistry of the copper deposit lead to the conclusion that Sareke copper deposit is a basin fluid-related conglomerate type deposit.