Africa is the region with the lowest total and per capita greenhouse gas emissions in the world, but it bears the brunt of the adverse effects of climate change. Due to its special geographical location, spanning north and south of the equator, Africa has a vast territory, a large population, and a diverse climate, and its economic and social development is relatively lagging behind, especially the low urbanization and industrialization rates, a large agricultural population, and huge inter-regional climate differences. The existing research mainly focuses on the political, economic, geopolitical, and poverty, education, and health aspects of Africa. The research theme of this paper is the impact of climate change on food security in Africa; using the literature research method, we study the impact of climate change situation on food security in Africa; the purpose of the research is to draw the attention of the international community to climate change and food security; increase the attention and support to Africa, so that Africa can become better. The purpose of the study is to draw the attention of the international community to climate change and food security, and to increase the attention and support to Africa so that Africa can better adapt to the impact of climate change.