It is a comprehensive functional department of public security organs for receiving and handling police, information research, decision-making, staff advice and command and dispatch. There are three main functions of the command center of the Public Security Bureau: First, receiving the police, that is, receiving the alarm from the masses, handling emergency help, handling complaints and reports, etc. The second is intelligence judgment, that is, collecting, sorting out, comprehensively analyzing, judging and submitting public security information to provide decision-making suggestions for leaders; The third is command and dispatch, that is, to help realize the integration of resources within the jurisdiction, to link police resources with social resources, and to deal with emergencies or major special actions.