General airport refers to a small airport, which is mainly used for the take-off and landing and docking of private or small aircraft. General airports are usually invested and built by private or local governments, mainly serving the private flight needs of individuals or enterprises. This kind of airport is small in scale and usually can only accommodate small aircraft, such as private aircraft, small commercial aircraft and light aircraft. Therefore, the length of the runway in general airports is usually short, and the facilities and services are relatively simple. The main function of general airport is to provide private flight services, such as stopping, refueling, maintenance, aircraft leasing and so on. In addition, General Airport can also provide other services, such as aerial sightseeing, aerial photography and aviation training. The difference between a general airport and a large commercial airport lies in its scale, services and facilities. Large commercial airports usually have more facilities and services, such as business districts, restaurants, hotels, car rental services, luggage storage and so on. In addition, large commercial airports also provide a large number of flights and destination choices to meet the needs of passengers.