Abstract: Industry innovation should not only pay attention to the promotion of innovation ability of each subsystem, but also lay emphasis on synergistic effect of the innovative composite system. Since ICT is the fundamental industry, analyzing the collaborative development of the ICT industry can enhance the innovation capability of ICT industry and promote innovation development of other industry. Firstly, the paper constructs a theoretical model of ICT industry’s composite innovation system based on the complex system. Secondly, it gives an empirical analysis of ICT industry’s composite innovation system using the panel data from 2003 to 2013. The conclusion indicates that the synergy degree of ICT industry’s composite innovation system is at a low level, and vibrates from 2009 to 2010. The main reason could be that system innovation subsystem is not cooperative and the order degree of innovation environment subsystem is at a low level in a long period of time. Then, it gives policy recommendations in response to the problems. At last, the paper presents the insufficiency of the research and points out research direction in depth.