Based on extensive analysis of the value chain theory at home and abroad, the cost control theory and value chain cost control theory, on the basis of H company as the research object, combined with the development of H company operating condition and current situation of cost control based on value chain perspective deeply analyze the main value of H company internal value chain and the external value chain activities, aims to find problems existing in the cost control of H company, and then further analyze the causes of the problem, combined with modern cost control method, put forward to improve H company cost control system, the whole value chain optimization Suggestions and measures.