///Using regional geochemical data on a scale of 1:200 000, element composite anomalies for various types of Cu mineralization in the middle section of the East Tianshan Mountain range were delimited. The result shows that there exist three types of element assemblages, i.e., Cu-Co-Ni-Mn-V-Fe-Cr element assemblage associated with porphyry Cu and Cu-Ni sulfide deposits, Pb-Mo-Ni-Cr element assemblage associated with igneous Cu-polymetallic mineralization, and Cu-Mo-Hg-As element assemblage associated with hydrothermal or skarn Cu deposits.