Abstract: As an important branch of biological recognition technology, face recognition is widely used in identity authentication because of the non-contact characteristics. Baidu Cloud AI is an intelligent cloud platform, it has opened the application service of lightweight face recognition and authentication. Since the service does not need repeatedly develop the face recognition algorithm, the riding environment with “face swiping” can be built in a short time. Based on Baidu Cloud AI technology, the feasibility of fast establishment of face recognition application scenario for rail transit automatic fare collection (AFC) system is analyzed.