Abstract: The 2022 Beijing Winter Olympic Games and Winter Paralympic Games (hereinafter referred to as the Olympic Winter Games) is an important opportunity to promote the in-depth development of China's Olympic movement and show the comprehensive level of China's high-speed railway. In order to meet the demand for high-quality and high-level high-speed railway transportation during the Olympic Winter Games, China Academy of Railway Sciences Corporation Limited led and organized many units to jointly study the project of "key technologies and demonstration of intelligent service of Beijing-Zhangjiakou high-speed railway". This paper introduced the research objectives and contents of the project, designed the overall framework of the project from the aspects of data layer, platform layer and application layer, and analyzed key technologies of the intelligent ticketing service, intelligent passenger service of station and train , Fuxing Olympic intelligent EMU, railway operation safety guarantee, intelligent analysis and control of tunnels and underground stations, put forward the innovation points for intelligent travel, operation safety and people's Olympics. It is of great significance to improve the intelligent service level of Beijing-Zhangjiakou high-speed railway and highlight Chinese culture.