Abstract: The paper addresses information shared mechanism for polyester industry in terms of the value,obstacles,and objective.The information shared mechanism for polyester industry is designed and described.The mechanism can be realized through an information management system whose functions include the validation and analysis of data provided by enterprise,the judge of enterprise credit level,etc.The information shared level and scope of an enterprise depend on the fee it has paid and its credit level.Its advantage lies in the fact that it satisfies the information shared requirement for the polyester supply chain and harmonizes the relationship among the polyester enterprises.