The traffic police brigade belongs to the public security organs, so it belongs to the state administrative organs. General municipal administrative areas set up traffic police detachment. Public security bureau is usually divided into several business departments, such as political department, legal affairs department, equipment finance department, information and communication department, etc. According to its functions, police stations can be divided into criminal investigation, public security, household administration and special service, as well as several teams, such as criminal police, patrol, public security and traffic police.

Traffic police, referred to as traffic police for short, refers to the people's police in charge of traffic order management and traffic accident investigation in public security organs. It is a kind of police of the people's police. Its main responsibilities are traffic order management, traffic accident investigation, traffic crime investigation, vehicle and driver management, etc.

"People's Police Law of the People's Republic of China" Article 2 The tasks of the people's police are to safeguard national security, maintain social order, protect citizens' personal safety, personal freedom and legitimate property, protect public property, and prevent, stop and punish illegal and criminal activities.

The people's police include the people's police of public security organs, state security organs, prisons and reeducation-through-labor administrative organs, and the judicial police of people's courts and people's procuratorates.