Studies on REE, trace elements, stable isotopes, fluid inclusion and geochronology indicate that theHuashugou (iron) copper deposit was formed in a submarine rift near continental margin. The ore-formingmaterial mainly came from the Proterozoic basic volcanic rocks, sulfur and carbon mainly from theseawater. Following the development of the arc-trough-basin, the Proterozoic volcanic and sedimentarybasement rocks were subjected to the interaction of the deep-circulating hydTothermal system, the oreforming material was leached, transported and finally exhaled into the sea-floor to form the copper-bearingstTata, while the late metamorphism made some of the ore-forming material activated, transpofted andenriched. This deposit is an exhalation-sedimentation and metamorphic (iron) copper deposit. Studies on REE, trace elements, stable isotopes, fluid inclusion and geochronology indicate that the Huashugou (iron) copper deposit was formed in a submarine rift near continental margin. The ore-forming material mainly came from the Proterozoic basic volcanic rocks, sulfur and carbon mainly from Following the development of the arc-trough-basin, the Proterozoic volcanic and sedimentary basement rocks were subjected to the interaction of the deep-circulating hydTothermal system, the oreforming material was leached, transported and finally exhaled into the sea-floor to form the copper-bearingstTata, while the late metamorphism made some of the ore-forming material activated, transpofted andenriched. This deposit is an exhalation-sedimentation and metamorphic (iron) copper deposit.