Abstract: Hualong basic-ultrabasic rocks belt is a great important rock belt in South Qilian mountains,and it develops many basic-ultrabasic intrusions.All the basic-ultrabasic intrusions intrude into Hualong Group,and have similar geological and geochemical characteristics and geological conditions by the comprehensive research of basic geological characteristics and crystalline basement in Hualong group on the basis of research achievement.Together with several typical copper and nickel formation ore features,therefore,it suggests that Hualong basic-ultrabasic rocks belt has good metallogenic condition of Ni-Cu and prospecting potentiality.Field work and ore-prospecting practice proved that bearing-ore basic-ultrabasic intrusions under thick red cover have good mineralization,and there are potentials for finding new similar intrusions and Ni-Cu deposits in the Hualong basic-ultrabasic rocks belt,and it will have great resources potentiality.