The traditional cost control only focus on a certain link cost, ignore the other link, the cost of the different stages of the product cost cannot be accurately reflected, enterprises to reduce costs usually adopt short-term behavior, harm the interests of suppliers and buyers, from a long-term point of view, does not accord with the requirement of enterprise development, under the guidance of cost control and value chain thought, It comprehensively involves the cost of each stage of enterprise production and operation, which makes up for the shortcomings of traditional cost control theory that only focuses on the cost of production process, and takes the value chain as a tool of enterprise cost control to help enterprises reduce costs and gain advantages.