Air Traffic Control Branch is a subordinate unit of Civil Aviation Administration, which is mainly responsible for organizing the normal operation, coordination and supervision of air traffic system and aviation radio management in the area of responsibility, and providing air traffic control, communication, navigation, surveillance, meteorology and navigation information services for civil aviation aircraft in the area of responsibility. It belongs to a public institution, but it is not a public institution.

Due to the particularity of the business of air traffic control sub-bureau, the possibility of changing into an enterprise in the future is almost zero.