Abstract: In response to the problem of high passenger flow and limited staff at stations, which made it difficult to provide real-time service to a large number of passengers, this paper adopted technologies such as Web Real-Time Communications and QR code applications to develop an intelligent service system for metro stations. The system included functions such as QR code services, direct audio and video calls through QR code scanning, and individual (handheld intelligent terminal staff) positioning services, had the ability to expand and iterate the "microcirculation service" system with QR codes as the service window and individual soldiers as the service response subject within the station, formed a fundamental transformation of the station's service mode from passive to active. The demonstration application on the Beijing Airport Line shows that the system effectively reduces passenger complaints at metro stations, achieves the goal of cost reduction and efficiency increase, and has good social and economic benefits.