Abstarct: Abstrac In general, Iran has many mineral potentials. Of course, currently limited cases have been discovered and extracted from it. Considering the increase in demand and the little exploratory information that has been obtained so far, it is necessary to expand and develop exploratory studies. The basic approach in the exploration of sulfur-baxsed mineralization is the use of geophysical methods, especially the induction polarization method. In this article, an area of about 30 square kilometers in the east of Semnan province has been studied. The purpose of study in Chahshen exploratory area is copper sulphide mineralization. So the research investigates the possibility of copper mineralization in the region by using geophysical methods. For doing exploratory studies in this area, geophysical methods, especially induction polarization and resistivity methods, were used. The devices used are: transmitter model TX III made by GDD company, receiver model GRx8-32 and processing device, power generator with power of 5000 watts made by Honda company. At first, a rectangular array was used to determine the general situation of the area. In this array, the distance between the data collection points was determined to be 20 meters. Also, a distance of 40 meters was considered for data collection lines. The distance of the electric current line was also considered to be 600 meters. In the first stage of data collection, 350 data were collected. The data obtained in this step were mapped by interpolation in Surfer software. Then, after determining the change of chargeability and resistivity of rocks in the region and field observations, four profiles, 500 meters long and extending north-south, were designed in the region. These profiles were taken with a pole-dipole array. The distance between the data collection points on the profiles was considered 20 meters. In the second stage of data collection, 150 data were collected. Using profile data in Res2DINV software, chargeability and resistivity sections were modeled in reverse. Then, according to the results obtained in the sections of chargeability and specific resistance of profiles No. 1, 5, and 2 and the location of mineral outcrops, two control profiles of 440 and 500 meters length were designed and data were collected with a dipole-dipole array. Also, the chargeability and resistivity sections of this profile were prepared in the same way. At the end, for better comparison between the obtained sections, all the obtained information was displayed in a 3D block with Voxler software. For drilling in Chahshen well area, by examining the chargeability and resistivity sections and determining the chargeable and resistant zones, as well as combining these zones with the geological information of the area and field observations, four drilling points on profile No. 1 in station -10 with a depth of 45 meters, profile No. 2 was determined at station -10 with a depth of 45 meters, profile No. 3 at station zero with a depth of 60 meters and profile No. 5 at station -100 with a depth of 60 meters. The drilling slope was considered 90 degrees for all points.