Domestic airports send or outsource services to front desk service, security check and some ground handling, and third parties send them to work at the airport. The airport (airline) has no labor relationship with its employees.

Due to the particularity of many positions in the airport, relevant training is needed, but according to the current laws and regulations, training fees should not be charged, and training agreements or responsibilities can be signed in the labor contract.

Textual research generally means that as long as there is a certain foundation, it is not too difficult to obtain the corresponding vocational skill level through vocational skill appraisal within a prescribed period of time, such as one year.