With the mission of "leading low-carbon digitalization and building a low-carbon new life", the project takes the university campus as the research object, and based on digital twin technology, uses Unity3D to develop a smart campus system based on digital twin and artificial intelligence technology. The system focuses on the electrical equipment and security equipment in the building, and has the functions of virtual reality, monitoring and control, statistical analysis and decision-making. So as to achieve the purpose of "green, safe, energy-saving and efficient" use of energy. The project can also be further promoted to provide low-carbon solutions for governments, enterprises, parks and individuals, and promote the early realization of urban carbon neutrality.