Abstract:The Internet has entered all fields of modern society. It is penetrating into traditional industries. The paper analyzes current informatization situation of characteristic industrial chains in Qinghai province, and designs the path of implementing“Internet Plus” action, which are the “four in one” informatization mode of these industries chains and some specific measures, here “four in one” means four platforms(knowledge sharing platform, big data service platform, online sales platform, logistics information platform) to support these industries chains. The paper provides reference for the construction and development strategies of characteristic industrial chains in less developed areas on the background of “Internet Plus”.