Abstract: Environmental damage is becoming more and more serious, extreme weather and soil air pollution affect the sustainable development of human society. Environmental protection has become the consensus of the whole society. The state has also made great efforts to protect the ecological environment. As a construction industry to lead by example, follow the pace of green development, development of green buildings, for the direction of urban building development, to promote the sustainable development of national environmental protection industry. Problems such as desertification and water surges have been highlighted. There is uncertainty about human development. It is imperative to change the way of development, therefore, the construction industry should change direction to promote the green development strategy. Smart City is a new concept of construction, which has become the guiding ideology in the process of modernization.