This report is all about the internship experience of Miss. Wanwisa Niyom, Airline Business student. This report presents the experience from the internship at I have worked at Customs Formality Sub-Division in Tax and Duty Service Division at Suvarnabhumi Airport Passenger Control Customs Bureau (Customs Declaration (Red and Green Chanel), VAT refund information counter staff, Seized Overtime Goods Sub-Division. This shows all the knowledge obtained from internship and the knowledge applied during work and also the new knowledge acquired from performing duties at the internship workplace for 3 months or equivalent to more than 315 hours. This report is comprised of time table of the working hours, experience, problems and solutions. The internship working period has been a good chance for practicing the knowledge gained from learning in the university (English and Airline Business management knowledge) and getting the new knowledge and experience in the real life.