Abstarct: The Qeysari copper deposit is located 105 km south of Damghan, in the northern part of central Iran tectonic zone and in the Torud-Chahshirin volcanic-sedimentary mountain. The exposed lithological units in the study area include the Eocene-Quaternary age, which includes Basaltic and porphyritic Andesite lava with pyroclastic rocks (e.g., tuff and agglomerate) the Eocene age, crosscut by diabasic dykewith Oligocene age. Volcanic rocks of the region have the nature of calc-alkaline and are formed in the continental margin. The rocks containing mineralogy have been associated with numerous gaps and fractures, which indicate the epigenetic mineralization. Regarding field and laboratory studies, mineralogy has mainly occurred in the form of vein-veinlets, in Open space filling and empty spaces in the units of andesite, basalt and andesite-basalt. The major alterations in the region include chlorite, carbonate, silica, sericite and iron oxide (hematite and limonite). In the studied area, the process of alteration has been developing since the beginning of the lava eruption into the sea. Because of this, all parts of the host rock show some alteration especially chlorite. While within the dyke and the margin, the alterations associated with mineralization are visible due to the circulatuore of the hydrothermal fluids. The most important structure and texture of the region are vein and vein-veinlets texture and open space filling, filler openings, replacement, disseminated, and Colloform.The main mineral constituents of the deposits are three groups of sulfide minerals (calcocite, chalcopyrite, pyrite, digenite, covelite), carbonate and copper oxide minerals (malachite and azorite), natural copper and oxide minerals and iron hydroxides (coprite, magnetite, hematite, limonite and goethite), gangue minerals include calcite, quartz and gypsum. baxsed on microprob studies wich on the hematite, malachite, goethite, coprite, limonite and covelite, copper was the main and most abundant element in Zn, S, Au, Ag and Pb respectively. baxsed on studies between fluid inclusionon the quartze mineral, homogeneous temperatures and fluid salinity are 140-190 degree Centigrade and 5-17 Weight percent equivalent to salt, respectively. copper element shows the highest correlation with the silver, and also the copper has a positive correlation with Pb, Fe, Sb and negative correlation with Zn and Sr. According to the above results, it seems that Qeysari copper deposit has many similarities with Manto type copper deposits and low epithermal sulfide deposits, but due to the vein structure of the region it is classified as vein type copper deposit.