Abstarct: The Zarandieh copper district is situated in Markazi province, northeast of Saveh, 8 km southeast of Mamuniyeh city. In terms of tectonic, this region is located in the middle part of Urmia-Dokhtar magmatic belt. The oldest rocks units are rhyolite, rhyodacite,andesite, trachy andesite and Eocene-oligocene pyroclastic rocks. The plutonic and hypabyssal bodies of diorite, monzodiorite and gabbro with the age after the Eocene (probably miocene) injected into the volcanics rocks. Copper mineralization in zarandieh area is mainly observed as vein and veinlet, breccia and open space-filling in intrusive and volcanic rocks (especially intrusive rocks). The alterations are included propylitic, argillic, sericite, silica, carbonate, iron oxide and albite. Paragenesis of mineralogy consists of pyrite, chalcopyrite (main ore), bornite, chalcocite, covellit, malachite, azurite, native copper, oligist, hematite, goethite and limonite. The most important textures of the region are disseminated, vein-veinlet, brecciation, and open space-filling and replacement. According to the geochemical studies, igneous rocks are of the calc-alkaline nature and mextaluminous and classified as I-type granitoid series. In terms of tectonically, volcanic arc related to with subduction and collision areas. Correlation coefficients show that Cu has the highest correlation Respectively with Ag, As, Zn, Cd, Pb and somewath Mn and Fe. The correlation between Cu and Mo and Au is insignificant. baxsed on the study of the fluids inclusion, the homogenization temperature vary from 152.7° to 226.6 °C (average 195°C) and salinity 20.89 to 25.64 Wt % NaCl (23%), that refers to mixing magmatic and meteorice waters (especially magmatic water) as the main volume of ore-forming fluids, which are located at low depth. baxsed on homogenization temperature and salinity amounts, copper mineralization occurred at a pressure of less than 50 bar and a depth of less than 500 meters. Geological, mineralogical, geochemical, and fluids inclusion microthermometry evidence of mineralization in Zarandiyeh copper introduce a type of hydrothermal vein granitoid-related.