In order to promote the ecological coupling development of automobile industry under the background of Internet of Things and intelligent communication, this paper makes a systematic analysis combined with model analysis method. This paper constructs the innovation ecosystem of intelligent networked automobile industry, discusses the coupling mechanism between its subsystems and the factors affecting the coupling of subsystems, which has certain theoretical innovation and provides theoretical support for the development research of intelligent networked automobile industry innovation ecosystem and enriches the theoretical system of industrial innovation. Intelligent networked automobile industry innovation environment subsystem realizes the effective allocation of capital, information and other resource elements in the innovation community subsystem through factor transmission mechanism. This makes industrial capital and information flow and gather to innovation subjects, and effectively promotes the development of innovation communities and the output of innovation achievements. Finally, this paper verifies the effectiveness of the system model proposed in this paper through simulation experiments.