Abstract: In response to the safety hazards caused by improper manual opening of doors and improper touching of electrical buttons by passengers during the operation of track operation car, this paper designed a car door control and video surveillance system for track operation car based on ARM Cortex-A-8 embedded platform, elaborated on the hardware design scheme, software architecture, core business processes, as well as functions such as door control, video capture, and video display of the system. Through key technologies such as electrical level conversion, multi-channel device status monitoring based on select/roll functions, and visual monitoring, the paper implemented automatic locking and opening of the doors of the track operation car, as well as real-time monitoring of passenger behavior. The trial results show that the system runs stably, can ensure the safety of track operation car, and has certain usability.