Abstarct: nowadays, use of advanced technologies to explore and evaluate reserves with calculations and modeling, reduces the costs and the time, improves success rates, and makes ability to see hundreds or even kilometers below the ground. Exploratory information leads to more accurate and reliable identification of mineral resources, and accordingly, it is an important concern. The purpose of this study is to process and interpret aerial magnetometer data and special resistance and induction polarization in Heird region 3: located in Khosf section in South Khorasan province. In this research, by processing and interpreting geophysical data in the above-mentioned methods, potential promising areas are determined and by examining the geophysical results in these promising areas, the optimal points for drilling operations are introduced. In this regard, first the aerial magnetometric data taken on profiles with distances of 7.5 km were modeled and interpreted using Geosoft Oasis Montaj software and then the areas with intrusive and magnetic masses were identified. Then, in order to identify possible abnormalities and investigate the deep changes, resistivity and induction polarizations were performed. resistivity and induction polarization data were collected along 8 profiles. The profiles are also parallel and designed in line with N80E. The resistivity and induction polarization data were collected along these 8 profiles with a bipolar-bipolar array. The resistivity and induction polarization data are then modeled by Res2Dinv software and the sections obtained from the inverse modeling are interpreted by using geological information and the results of airborne geophysical surveying. The depth and possible location of gold mineralization were identified and exploratory drilling was suggested to confirm these results and further studies.