Abstract: This paper took the needs of Guangzhou Metro multi-scene passenger flow precise guidance as the research object, and analyzed the functions required and available structures of the guidance system under multi scene. Based on the middle platform framework of Guangzhou Metro, the new technologies such as SpringBoot, MicroService, Redis and H5 were used to implement the functions of the guidance system, including forward-looking guidance in crowded conditions, active guidance in sudden situations and the accessibility query of the last train travel path. The development and operation of passenger flow precise guidance system and its App service in multi-scene can support the passenger flow operation organization in various scene of metro, and improve the rationality of passenger flow organization and passenger service level of rail transit.