Do I have to report to the police station to fly from Kunming to Bangkok?

Need. Go abroad for whatever reason. You must report to the police. If it is really necessary to leave the country due to labor, official duties, schooling, medical treatment and other emergencies. , you must report to the community police of the household registration police station more than 3 days in advance, and provide business licenses, real estate licenses, medical diagnosis certificates, valid labor contracts, official travel documents and other corresponding supporting materials.