Abstract: With the awareness of environment protection and sustainable development,the reverse logistics management is increasingly being concerned.The efficiency lose of the closed-loop supply chain with remanufacture based on third-party collecting is discussed in this paper.Results indicate that the value of used products is the motive factor of tack-back activities,the efficiency lose of the closed-loop supply chains with remanufacture based on third-party collecting is endogenous under non-cooperative decision structure,and the decision structure which the retailers decide the wholesale price of the products is more efficient than the that the producers decide the wholesale price of the products.The profit sharing contract is an efficient volicy to realize "win-win" among the members of the supply chain.

Key words: reverse logistics, closed-loop supply chain, structure, efficiency, profit shared