The construction of an air and missile defense chain/web is an important element in promoting the gradual completion of the national integrated air and space defense system. The deepening application of artificial intelligence， military internet of things， big data and other emerging technologies in the field of air and missile defense significantly improves the early warning， detection， information processing and command and decision-making capabilities of the air and space defense system，， and also provides more possibilities for the construction and development of intelligent air and missile defense and kill web of“instantaneous response and dynamic reconfiguration”.This paper introduces the development， connotation and characteristics of the concept of air and missile defense web， building the system support structure and analyzing and summarizing the web's key technical capabilities. It also provides relevant guidance and analyzes the web's future development trends， which will inform subsequent research.