Research priorities at the WSC are motivated by national water needs in the Kingdom of Saudi Arabia (KSA). National water needs are varied across-sectors, municipal, industrial and agricultural. The later consumes more than 80% of the available fresh water in the KSA. Research priorities are set to those, which address community water needs likewise and public consumption. Therefore, research work is directed toward means which lead to varied water resources, high water use efficiency and preservative water quality.Since the establishment of the center in 1982, researchers had the choices to select research subjects. That was phase I, which intended to make excellent research base for the center via preparations and qualified experts in water studies field.Phase II at the WSC was resumed in 1998 a plane in which the center coordinated with the governmental bodies and received the recommended subjects. Such subjects were thought to be priorities for research and solving economical problems. Then subjects provided to specialists, so they could present their research proposals. Examples of in point of those projects are the following:• Date palm national fertilization with Saudi Basic Industries Corporation (SABIC) program.• Irrigation Water conservation with Hassa Drainage Authority (HIDA).The potential contribution of the WSC in developing water resources, quantity and quality could be of unlimited boundaries, especially when critical issues of water scarcity were considered. The WSC with its current resources and human force is to set priorities for research and studies of water problems to meet national interests in water industry. Proposed water studies are classified according to their remedies. They are as the following:• Water resources and its new technology management tools.• Water quality and means to improve its recyclable techniques.• Water desalination.• Efficient water consumption. • Water informative issues to the public.