Vertical greening has a long history and is an important symbol of human spiritual civilization. As two ancient civilizations, China and Egypt, are both the birthplaces of vertical greening and the practitioners and pioneers of modern society. This paper focuses on the characteristics of research on this topic in both countries from 2010 to 2023. Based on an overview of the interdisciplinary nature of vertical greening research, key academic fields are classified, including energy efficiency, carbon reduction, perception and restoration, outdoor thermal comfort, and ecological impact. Studies conducted in China and Egypt have highlighted the potential of vertical greening to address various urban challenges, from energy conservation and emission reduction, to improving public well-being and promoting ecological sustainability. This paper expounds that vertical greening will be an effective measure to provide green space, enhance the resilience of ecosystem and promote the sustainable development of cities when the two countries are facing the environmental problems of urbanization.