Abstract:It is inevitable that the virtual supply chain confronts the problem of quality control if it wants to win the competition in the market. The overall presence of platform quality is influenced by the quality of enterprises. Therefore, the research on the platform quality control should be focused on the constitution of the quality of enterprises. Based on the reputation model, an imperfect information static game model was established to analyze the optimal strategy. It is concluded that when the game is carried out twice or more, the platform presents high quantity only if the high quality enterprise quantity ratio is greater than a certain a value. It cannot influence the equilibrium solution path if the prior probability changes with the game result. The ratio can be used as the reference of the selection of platform enterprise.