With their low cost， low casualty， multi-energy and high-efficiency advantages， UAVs are constantly changing the rules of engagement of war， and have become the focus of competition among countries around the world. According to the advantages of UAV support operations， explore UAV support operations in air defense operations such as early warning detection， electronic countermeasures， information communication， guided strikes， camouflage protection， transportation and delivery， and actual combat training. The proposals for UAVs devlopments in ground air defense forces are put forward， which are important for the rapid integration of UAVs into the air defense combat system and the improvement of air defense combat effectiveness.