With the rapid development of information technology, the remote maintenance support system of Surface-to-Air Missile Equipment is the important supplement and development trends to the actual three level maintenance systems, which is useful to improve the ability of equipment maintenance support. This paper based on the absorption of foreign army remote maintenance system and the preliminary analysis of the working process of Surface-to-Air Missile Equipment, introduces the component and function of the system, and discusses the key technology for the development of the system.