Abstract: To research the Internet market foreground and insure the product diffusion available we can describe Internet product diffusion process with Bass innovation diffusion models.The paper first discussed the affect factor of product diffusion and the diffusion process and then analyzed the example of Internet product diffusion with Bass innovation diffusion models.With Internet consumer data,the paper estimated the model parameter and established the Internet consumer diffusion model and forecasted the product diffusion process for the next several years.The paper also discussed the prospect of the diffusion models for IT.

Key words: product innovation, diffusion, bass Models, internet