To determine the groundwater potential of the karst aquifers in Noor Abad, Lorestan, 13 profiles and 106 vertical electrical sounding (VES) conducted by Schlumberger array. Because of 20-50 meters of VES spacing, it could be detect cavities with lower than 20 meters diameter. The results show in the 2-D geoelectrical tomography using a Schlumberger configuration has been allowed obtaining a comprehensive insight of different parts of karst regions. This method could be capabilities of delineate karst voids and water bearing layers. The geoelectric results and interpretation of tomograms have been resulted to delineation of three water wells with probable high yield in study area.