Abstract: Based on the current development trend of railway passenger transportation and passengers’ needs, this paper proposed a solution to apply the service robot and artificial intelligence technology to the railway passenger service system, summarized the architecture of multi-functional passenger service robot, the design of application service scenario, and the key technologies used in the implementation of the system, such as autonomous navigation and positioning, noise reduction, and the connection of existing facilities and equipment. Through voice interaction, touch interaction, remote control and other control interaction methods, combined with the comprehensive perception, equipment interconnection and fusion processing of the existing fixed infrastructure and internal and external environmental information of the railway, the multifunctional passenger service robot has the ability to connect with the gate, elevator, love channel, safety door and other equipment, and integrates face verification, start and stop inspection information reminder mobile video monitoring, mobile ticket inspection and other equipment functions to achieve interconnection with railway related systems, information integration and sharing, solve problems of information islands in passenger services, and provide passengers with more information-based, automated and intelligent services.