Abstract:This paper，based on the report The State of Arab Cities2020：Financing Sustainable Urbanization in the Arab Region，issued by United Nations Development Programme，tried to mapped the broad facts and trends of urbanization and infrastructure development in the Arab region. It illustrated main infrastructure role on answering immediate and long-term needs in Arab city. The smart reordering of decentralised municipal finances to build，maintain，and retrofit infrastructure is one of the most narrowly pragmatic and achievable interventions possible for governments and municipalities，with some highly effective small and large-scale examples from across the spectrum of the Arab region. The paper shows，in a region of 22 countries often beset by social tension，exclusion，poverty，and conflict，the planning and implementation of infrastructure augments peace-buildingstabilization，and legitimacy and inclusion，as citizens participate in shaping the environment of their cities. Infrastructure can either be a vehicle for political and social exclusion that cements narrow conceptions of the city，or the engine for political and social inclusivity so vital for the region’s women and young people，as well as groups like persons with disabilities，migrant workers，and minority religious and ethnic groups whose human capital and contribution are often wasted through marginalization.