Abstract: Nowadays, the rapid improvement of people's living standards has raised people's requirements for the comfort of living environment. Therefore, in the expansion and development of large-scale cities, more and more attention is paid to the coordination ratio of garden buildings and garden plants. It can not only enhance the beauty of the city, but also play an ecological function of purifying the air. Garden plants are the necessities of building high-quality garden buildings. If the ratio of plants is unreasonable, it will cause economic losses of the project and affect the beauty of garden buildings. In view of this, the article discusses the relationship between architectural gardens and vegetation configuration, aiming to provide valuable reference and reference for industry professionals, and then better contribute to the prosperity of the landscape architecture industry.