空中客车A320系列飞机是欧洲空中客车工业公司研制生产的单通道双发中短程150座级客机，是第一款使用数字电传操纵飞行控制系统的商用飞机，也是第一款放宽静稳定度设计的民航客机。A320系列飞机在设计上提高客舱适应性和舒适性。A320系列飞机包括A318、A319、A320和A321在内组成了单通道飞机系列。旨在满足航空公司低成本运营中短程航线的需求，为运营商提供了100至220座级飞机中最大的共通性和经济性。空中客车A320系列在设计中采取“以新制胜”的方针，采用先进的设计和生产技术以及新的结构材料和先进的数字式机载电子设备，大量使用复合材料作为主要结构材料，是历史上第一架放宽静稳定度设计的民用客机。

The Airbus A320 family is a series of medium-sized, short- to medium-range, single-aisle, twin-engine aircraft developed and produced by the European aircraft manufacturer Airbus. It is the first commercial aircraft to use a digital fly-by-wire flight control system and the first civil passenger to be designed with relaxed static stability. The A320 family aircraft are designed to improve passenger cabin adaptability and comfort. The A320 family includes A318, A319, A320, and A321, which together form a single-aisle aircraft family. It is to meet the needs of airlines for low-cost operation of short- to medium-haul routes, offering operators the greatest commonality and economy in the 100 to 220-seat aircraft category. The Airbus A320 family adopts a "new is better" philosophy in its design, using advanced design and production, new structural materials, and advanced digital avionics, and makes extensive use of composite materials as the primary structural material, making it the first civil passenger aircraft in to be designed with relaxed static stability.