The product of airline are not only offering a air transportation service to convey customer from origin to destination, the service of airline has been started when the customer consumed, such as ticket booking, payment, check in. Compared with the traditional consumer offerings, flight course service, as the most important product of airline, is invisible, intangible and can not be touched. Customer can not experience truly the various services providing by airline before boarding, for instance aircraft, aircraft equipment, flight personnel and meal services. There is a common ground between airlines and other service industries, the product can not be stocked and reselling, service perishability is particular prominence comparing with other service industry, one hour no producing is the waste, the idle plane without producing loss more than 10,000 US dollars per hour.