Mineralization of the Xiongcun copper—gold deposit, Xietongmen County, Xizang(Tibet), related to hornblende quartz diorite porphyry with big quartz eyes and controlled by at least three porphyry epiphyses. Mainly mineralized element is Cu and associated elements are Au, Ag, Pb, Zn, Mo, and content of other elements such as As, Ba, Bi, Cd, Co, Mn, Ni, Sb etc. also high. Anomaly elements have zoning characteristics, from orebody center outward, zoning of anomaly elements is Cu, Au, Ag, As, Sb,（Bi）→Co, Ni→Mo→Mn→Ba→Pb, Zn, Cd, Bi,（Sb）, anomaly and association of above mentioned elements are important geochemical orehunting indicator for such type deposit. Deposit is experienced early Cu—Au—Ag mineralization stage and late Pb—Zn—Cu—Au—Ag mineralization stage, early mineralization stage formed main Cu—Au—Ag ore body, late mineralization stage formed Pb—Zn and minor Cu—Au—Ag. Cu—Au—Ag show highly positive correlation, Cu mainly occurrence as chalcopyrite, Au—Ag mainly occurrence as isomorphism in the chalcopyrite. K/Na = 69 and Rb/Sr=08 show that oreformation environment in this deposit is riched in K—Sr and poor in Na—Rb, and Au(0.6×10-6) > 0.4×10-6, Au(0.6×10-6)/Cu(0.4%)>1, n(Cu)/n(Au)(20678)<40000 and Mo(19.7×10-6) show rich in Au and poor in Mo in this deposit . Based on the convergent margin tectonic setting, the mineralization association with hornblende quartz diorite porphyry with big quartz eyes, the association of anomaly elements , the zoning characteristics of anomaly elements, the early stage Cu—Au—Ag mineralization and late stage Pb—Zn—Cu—Au—Ag mineralization, the mineralization elements association of high Cu—Au—Ag and low Mo, and the oreformation environment of rich in K—Sr and poor in Na—Rb,it is considered that the Xiongcun copper gold deposit has the characteristics of arc island or similar arc island porphyry copper—gold deposit and late stage Pb—Zn—Cu—Au—Ag mineralization which occurs as veins in late stage of porphyry system overlap it.