Beijing Sub-Central Station is the future transportation center in Beijing. After its completion, the Station will become the largest underground comprehensive transportation hub in Asia. Its construction will deeply integrate modern information technologies e.g. BIM technology with traditional engineering construction technologies, which can solve various problems in the construction process and realize the innovation of intelligent construction technology. This paper analyzes the six major problems of difficulties faced in the construction of Beijing Sub-Central Station, proposes solutions based on BIM, and describes the basic application of BIM technology and innovative applications of intelligent construction based on BIM technology, especially digital twin which is an intelligent construction platform with the core concept. At the end, the paper summarizes the goals achieved by this project, which can provide a reference for future construction projects and applications of intelligent construction technology.