Police patrol robots are suitable for police stations and major event conference scenes. They use artificial intelligence, cloud computing, Internet of Things, big data, 5G communication and other technologies to integrate environmental perception, dynamic decision-making, behavior control and alarm devices. They have the capabilities of autonomous perception, autonomous walking, autonomous obstacle avoidance, intelligent identification and so on. They can help police officers complete basic, repetitive and dangerous police work, promote intelligent upgrading of public security, and ensure the safety of police officers, release police force and reduce personnel costs.