Abstract: This paper designed an infrared recognition gate control system to address issues such as complex data processing and poor real-time performance of the gate traffic logic algorithm. The system integrated functions such as traffic logic, gate control, sound and light alarm, etc. Combining with passenger traffic event sets, the paper introduced infrared sensing recognition technology to optimize the sensor layout of the gate traffic, based on the idea of location recognition to design a traffic logic algorithm, and used a 32-bit Advanced RISC Machine (ARM) microcontroller as the main control chip. The results of application in multiple passenger stations of the national railway show that the system has a low false alarm rate, accurate passenger behavior detection, and high traffic efficiency, which verifies its reliability and practicality.