The major railway passenger hub for the safety of the passengers bears important social
responsibility in a video surveillance system; using digital image processing techniques to identify the passenger is a hot issue of domestic research currently. In this paper, digital image processing technology used MATLAB programming system developed by each module design and system integration. Proposed passenger identification system is designed to identify the real-time passenger number, density and velocity inside the station, and to determine the level of traffic safety situation. This system has good practical value.