A groundwater potential map was developed to site selection of drinking water wells in Noor Abad, Lorestan using remote sensing and GIS techniques. The six effective parameters on karstic carbonate formations in the form of six standard maps were used to identify for high groundwater potential zones. All the maps have been prepared, rated (deterministic method), weighted (from1 to 5) and integrated (Index-Overlay methods) under a GIS environment. Based on the final groundwater potential map, in seven sites, areas with groundwater potential were identified and introduced geoelectric data mapping (Schlumberger array) to determine the suitable points for drinking water wells. The Miocene limestones have high groundwater potential than Cretaceous limestones.