Abstract: Located on the northern portion of Sanjiang polymetallic ore belt,Sourthern Qinghai province,the Lurige deposit is a recently discovered porphyry molybdenite-copper deposit.Based on the field geological survey,this paper study ore fabrics,minerlization composition and occurrence of associated element by microscopic observation and electron microprobe analysis techniques.Study show that Lurige deposit mineralization structure are mainly disseminate and vein let and grow a large number of quartz-polymetallic sulfide veins,quartz-sericite-polymetallic sulfide veins,quartz carbonate veins and so on.According to field characteristics of the ore deposit and fabric characteristics,the ore-forming process has been divided.Lureige deposit have the similar complete mineralization combination to porphyry hydrothermal deposits,which show its excellent exploration potential.