Abstract: In order to effectively monitor the illegal intrusion and reinforce the protection for the ends of railway station platform, the intrusion protection system for platform ends based on lidar detection and supplemented by high-precision positioning recognition and image intelligent recognition and analysis is proposed. This system can intelligently detect intrusion targets, accurately identify the staff with positioning labels, and intelligently identify the staff wearing special uniforms. So, this system can distiguish the staff from illegal intruders and sends off alarms only for the illegal intruders and thus has low false alarm rate. At present, it has been applied to several railway stations, which effectively improves the safety management level of railway stations.