Urumieh-Dokhtar is one of the richest polymetal zones in Iran, until now many mineral signs, polymetal ore veins and porphyry deposits have been distinguished in it. The high added-value in price of copper, gold, lead and zinc, and also the increase of consumption in the market, bring up the prospecting and exploration of mineral deposits in this zone. The Kohandan polymetal index area in the west of Qom province, Kojestan district, place on the frontier line between Qom and Markazi province. This index places in 2km north-west of Kohandan village and 500m north of a small farm, near the road which culminates in the village. Considering the mineralogy, kinds of alteration and surface evidence, it can be one of the hopeful zones to concentrate the mineralization of copper, lead, zinc, silver. In this study, to determine the mineralization pattern of Kohandan polymetal index, the results of geological, mineralogical, inverse geophysical modeling data, statistical analysis of surface litho-chemical data, and combination of their results with other exploration information were used. From the geological point of view, the general trend of the rock units, distribution of the faults and alterations show that the studied area lies in Urumieh-Dokhtar zone. Incorporation of the geological and mineralogical studies and geochemical data of the studied area, refers to the presence of brecciated-silicic, iron oxides, propylitic and phyllic alterations. By using of the mineralogical studies, galena, malachite, magnetite, goethite, chalcopyrite, pyrite, sphalerite and copper were distinguished as metallic ores. Ore minerals are often related to silicic bodies. The geoelectrical studies, using the results of raw data and processed geophysical data (inverse modeling chargeability and electrical conductivity) from two profiles in the area, distinguished the hopeful zones of mineralization. Statistical analysis of the geochemical raw data of copper, lead, zinc, gold, silver and iron determined that the distribution of elements tends to log-normal. In surface sampling, grade variations of gold in the mineralized samples show values from 25 to 256 , copper variations from 0/0273 to 1/47% and silver variation from 1/7 to 250 . Iron ranges from 0/5 to 10/5%, lead from 0/12 to 5/5% and zinc from 0/0011 to 3/5%. By using the results of raw and processed geophysical data (inverse modeling chargeability and electrical conductivity) and geochemical (statistical analysis), and considering the geochemical mono-element symbolic maps of gold, lead, zinc, silver, copper, and cluster analysis of these elements, two zones of zinc-copper and gold-silver-lead can be separated. Also, considering the existence of the magmatic bodies in the area, conditions of oxidation, silicic and propilitic alterations, correlation coefficient and the manner of the precipitation of the materials, epithermal mineralization is the most probable mineralization type in the area.