The price decision models of closed-loop supply chain that is composed of one manufacturer and one retailer with product remanufacturing under uncertain demand was built. The price models were analyzed by game theory, and some conclusions were obtained. The callback product price, the sale price, the expected profit of the system and its members under different new product manufacturing cost were further analyzed numerically. By making the comparison between the two closed-loop supply chain models, it is found that the callback product price and the sales in centralized closed-loop supply chain is more than that of the decentralized closedloop supply chain, nevertheless, its sale price is less than that of the decentralized closed-loop supply chain.