Epithermal Au(CuAg) deposits occur largely in volcanoplutonic arcs associa ted with volcanism and subvolcanism, with ages similar to volcanic activity. Two en dmember styles of epithermal Au(CuAg) deposits, high sulfidation and low s ulf idation, have been identified. Based on research, these two deposit styles are f ormed from fluid system of distinctly different chemical composition in contrast ing volcanic environment. Mineralizing age of Epithermal Au(CuAg) deposits i n east China are relatively old than other countries, and mainly bercciapipe typ e and porphyry type.