Abstract: Taking deep material circulation and porphyry copper-gold mineralizaion related to the subduction of the western Pacific plate as research objects, this study reviewed the complex geochemical process and behavior of copper-gold in arc magmas by focusing on the research of tectonic magmatism and porphyry copper-gold magmatism in Philippine island arc. According to systematic review on intermediate-acid magmatic activity and porphyry copper-gold mineralization in response to the constraints from the tectonic evolution of western Pacific plate, this paper conducted detailed geological-geochemical research on the key carrier of Mesozoic-Cenozoic island arc magmatic rocks and porphyry copper gold deposits, identified geochemical indicators conducive to mineralizaiton as well as explored its contribution to the forming of regional copper-gold polymetallic deposits, and finally summarized the regional metallogenic regularity and built metallogenic dynamics model. By studying the island arc magma originated from oceanic crust remelting and the formation mechanism of mineral deposits controlled by the subduction of Mesozoic and Cenozoic plates, this paper further explore some important issues of the oceanic crust and mantle in the process of plate subduction.