Abstract:Cu-S minerals in deep Zijinshan Copper deposit are abundant, by sampling Cu-S series minerals systematically from top to bottom, 5 kinds of Cu-S system minerals were detected by means of ore microscope and electron probe after hand specimen observation, including digenite, covellite, anilite, geerite and djurleite. Cu-S series minerals of the ore bearing layer is divided into 4 bands from top to bottom whose distribution elevation was from 300m to -130m. The main copper minerals were digenite, covellite, anilite, The secondary copper minerals were geerite and djurleite. The deep copper ore body can be divided into 2 layers through the analysis of lithology and copper sulfide minerals, Cu-S series minerals of upper ore-body was covellite-anilite-digenite and lower ore-body was mainly anilite. In deep part of deposit, the sulfur fugacity and oxygen fugacity gradually increase with the decrease of the elevation, implying that there would be a good prospect for porphyry deposit prospecting.