There is no doubt that the think-tanks in the developed world became of a signifcant standing, especially on policy making and were called think-tanks that is to say deposits of thoughts. The states, society institutions depend on these centers as for studies, reports, and advices in many economic, social, political, security, military, and cultural matters, rarely, we find a member of parliament, companies administration councils, or civil society organizations that not depend on a think-tank for necessary views and thoughts to make help in taking appropriate decisions for difficulties or necessary solutions for some attitudes. In my research which is called "the Importance of Arab think tanks: Regional Studies Center at Mosul University, Iraq as a case study, I'm trying to look into the significance of these Arab thinktanks, and to explain the nature of its work, needs and obsticales that hinder its work and to take the Regional Studies Center at Mosul University that I'm honored with its chiefing as a " case, study", we celebrated the silver jubilee on August 24,2010 after 25 years of establishing the center.