This study concentrates the use of remote sensing and geographic information systems to identify prospective areas for water harvesting, This study concentrates on the identification of the potential areas for water harvesting projects in Hessia and the adjacent areas, within a total area of 1300 km2. The data and information for the study area are collected from different sources and satellite images. The thematic maps and digital database were prepared through analysis and visual and automatic interpretation of satellite images, and analysis and intersections between different layers were procedure in order to apply the criteria that are used in these studies to determine optimal and typical sites for the establishment of preparation water harvesting. The result of this study shows the efficiency of using the remote sensing techniques and the geographic information system in the identification of the potential areas for water harvesting projects.