Abstract: The purpose of this study is to design a positive information interaction system of the vehicle supply chain through Web 2.0 mechanism such as Blog, Rss, SNS and the like. The paper describes the structure of the system, then brings out the mechanism, which pushes the information to the client side quickly, and increases the customers viscosity. At the same time, the paper searches such techniques as Ajax, Web service, P2P as are applied to this system. The results of the case about the certain large motor corporates indicates that the system improves the informations availability and timeliness and relieves the cost increase indirectly as the bullwhip effect it brings.