Military aircraft refers to the general term for aircraft that directly participate in combat, support combat operations and military training. It is the main technical equipment of the aviation force. Mainly include: fighter planes, bombers, fighter bombers, aerospace bombers, aerospace fighters, attack aircraft, battlefield surveillance aircraft, anti-submarine patrol aircraft, armed helicopters, special operations aircraft, reconnaissance aircraft, early warning aircraft, electronic countermeasure aircraft, seaplanes, military transport aircraft, Air refueling aircraft and trainer aircraft, etc. A large number of aircraft are used in combat, which makes war develop from plane to three-dimensional space, and has a great impact on strategy, tactics and army composition.