Egypt is one of the world's top solar belt nations; its arid climate makes it one of the best. There is a vast array of resources and potential in Egypt's western desert that make it possible to attain sustainability. The Western Desert is significant because it contains distinctive features, special habitats, and abundant natural resources as wind, solar energy, and ground water which can be exploited to renovate the desert. Yet, despite this, not all of these potentials are utilized because of certain obstacles and challenges that prevent growth. So the research suggests a sustainable strategy to reclaim the desert through advocates implementing the ecological settlement approach, which is one of the best ways to accomplish so while utilizing available natural resources. Thus, the research proposes setting up a great green wall in western desert parallel to the River Nile starts from Mediterranean Sea crossing the western desert, between oases and ends by the Sudanese border at south. This great green wall will be a new green environmental, urban axis that achieves environmental, economic, social, and urban sustainability. From this point of view, this paper emphasizes two critical issues. Firstly, a theoretical study which contains the definition and principles of great green wall, developing, ecological pole to build such a green hedgerow. Secondly, analyze international case studies (China and Africa G.G.W) to identify the most important criteria of Great Green Wall. Finally, suggesting a great green axis in Egypt to solve the environmental, economic, social problems and achieve sustainability

Desertification; Ecological Settlement; Zero-Agro City; Developing Pole; Great Green Wall