What do airport security personnel belong to?

Airport security personnel belong to airport employees, not civil servants.

Security personnel are mainly responsible for checking whether passengers have contraband in the security channel to ensure the safety of passengers. They are employees recruited by the airport or employees who work at the airport through labor dispatch. Different from regular workers, they usually sign contracts with airports or third-party labor dispatch companies in the form of contract workers or labor dispatch workers to engage in airport security inspection.

The above information is for reference only. For the management and treatment of airport security personnel, I suggest you consult relevant laws and regulations or consult relevant departments.