Metallogenic unit is a geological unit on the metallogenic significance. The latest classification scheme about Chinese metallogenic units released by the national mineral resource potential assessment project include level I (metallogenic domain), level II (metallogenic provinces) and level III (metallogenic belts). This paper revises the boundaries of the six level III metallogenic units (metallogenic belts) in the east Tianshan-Beishan area on the basis of the inheritance of this classification scheme. Then the six level III metallogenic units are divided into 11 class IV metallogenic units (metallogenic sub-zone)as a symbol of significant stratigraphic, tectonic and magmatic belt and associated mineralization. Furthermore, there is a summary about geology and mineral characteristics of every class IV metallogenic unit (metallogenic subzones).