This study explores how green investment affects economic growth, focusing on foreign direct investment (FDI), domestic, and public investment. A literature review shows FDI’s impact depends on factors like political stability, regulations, and infrastructure. Econometric analysis confirms a strong link between investment and GDP growth, especially in developing countries. Uzbekistan’s post-2017 investment-led growth is a key example, with FDI flowing into manufacturing, energy, and digital sectors, driven by countries like China, Russia, and the U.S. However, challenges such as debt, regulatory issues, and dependence on a few trade partners remain. The study highlights the importance of strategic policies to ensure sustained economic progress.