Great Man-Made River project is considered one of the most important infrastructure investments performed by The Libyan Arab Jamahiriya in the last 3 decades. Decision makers have the burden to take this project to achieve its political, social, and environmental goals, through carrying out a set of integrated plans according to the priorities of the society. Nevertheless, the involvement of the foreign investments into the national economy is an important goal, and this is done according to the social and environmental standards. Available data and information confirmed the viability of foreign investment, either directly or indirectly, in different agricultural activities that will benefit from the use of the Great Man-Made River water, based on the decision making process, and based on the scientific and logical analysis.