Applications Satellite Industry is national strategic high-tech industry, and the key tache for its industrialization is to deepen Image diffusion in more economic and social fields. Based on the market structure and diffusion process of CBERS (China-Brazil Earth Resource Satellite) image, this paper analyses the characteristics of distribution and establishes three diffusion models of network channels, price strategies and competitive factors respectively. Empirical result shows speed of diffusion is fastened through online channel, but hampered by TM Image, and free distribution policy has no obvious impact on it. It is cost-efficient that influence the decision of potential adopter deeply. Further research takes all three factors into the nested model, and gives the simplest form including network factor and the most accurate form including network and competition factors.