Abstract: In response to the difficulties and needs encountered by passengers in complex travel environments, this paper combined the characteristics of railway comprehensive passenger transport hubs with passenger service business and XR (Extended Reality) technology to study and propose a XR based realistic roaming system for passenger travel in comprehensive passenger transport hubs. It designed the architecture and service functions of the system, and elaborated on relevant key technologies to meet the fast, convenient, and comfortable travel needs of passengers in complex environments of comprehensive passenger transportation hubs, and solve the problem of difficult travel for passengers in complex environments. The paper selected Qinghe Hub Station of China Railway Beijing Group Co. Ltd. as the experimental verification scenario and built a system prototype, verified the advantages and effectiveness of the system in providing convenient travel services for passengers.