After the reform and opening up, China's economy has developed rapidly. But in the process of economic development, the ecological environment has also paid a huge price. The destruction of the ecological environment directly affects survival and development of people. Therefore, it is necessary to strengthen environmental governance. Everyone has also begun to focus on low-carbon development. The construction industry is a serious waste of building materials with large energy dissipation. Therefore it is also a key industry for low-carbon transformation. This article mainly analyzes low-carbon building design technology and studies specific development strategies.