This paper discusses how an enterprise can enhance the manufacturing agility of complex products through the application of information technology． There are completely contradictory findings in the existing literature regarding whether information technology can promote the manufacturing agility of complex products．It is found that by identifying the information processing requirements of complex product manufacturing， building the information processing network structure of different levels of hierarchy and the degree of centrali-zation，and introducing the corresponding organizational control way，the company is capable of using informa-tion technology to promote the manufacturing agility of complex products． The study finds that the information processing capability is formed by mutual adapting of the information processing network and organizational control way． The information processing capability includes information decomposition，information accelera-tion and information sharing． This study opens the “black box”between the information technology and the manufacturing agility of complex products from a dynamic perspective． It has profound guiding significance to develop information processing theory and promote manufacturing agility of complex products in Chinese com-panies．