Abstract: The approaches to the sources of ore-forming matter are considered as an important aspect for the research of ore deposits.The exploration of temperatures,compositions and salinity of the quartz inclusions from the ore-bearing rocks,and geochemical signatures of the Liwu copper deposit, Jiulong,Sichuan has disclosed the sources,migration and enrichment of the ore-forming matter,thus help establish a basis for the interpretation of the genesis and mineralization conditions of the Liwu copper deposit.