In recent years, face recognition technology has made rapid progress and has become an indispensable part of our lives unconsciously. Ticket gates at many stations in China have adopted the latest face recognition technology, which has greatly improved safety and social control. From a traditional point of view, this technology is mainly used in security screening at international airports to prevent terrorist or criminal threats. However, with the continuous development of technology and the advanced cloud technology and artificial intelligence, the speed and accuracy of real-time image analysis have been comprehensively improved. At present, China has also begun to promote face recognition technology at the entrances of stations.