The review examines the various economic effects of Expo 2020 on the UAE. The event facilitated economic diversification through innovation, entrepreneurship and investment in tourism, technology and real estate. Infrastructure developments such as the Dubai Exhibition Centre and traffic expansions spurred local jobs and long-term urban growth. But problems followed, including uneven regional gains and environmental issues arising from mega construction. Expo 2020 was a reflection of UAE’s international aspirations but also challenged whether short-term economic benefits could be balanced against long-term growth. Expo 2020 has left its legacy on the UAE’s economic growth, with both promises and challenges ensuing from the Vision 2030 agenda.