Abstract: With the significant progress of system engineering design and the popularity of the concept of environmental protection, remanufacturing technology has been recognized as a major innovation in manufacturing and environmental protection. Industrial enterprises can recycle and reuse waste products through remanufacturing technology, which can effectively reduce pollution, save resources and also obtain extremely considerable economic benefits. So, closed-loop supply chain management (CLSCM) has attracted more and more attention of manufacturing enterprises, and has been incorporated into its important development strategy. Meanwhile, due to the influence of external factors such as government regulations, public concern and media reports, some enterprises will also show their contribution to the society and environment by performing corporate social responsibility(CSR)，so as to establish a good corporate image and enhance market competitiveness. According to this, it is believed that it is of theoretical and practical significance to explore the recovery and pricing decision of CLSC with CSR investment.

Key words: closed-loop supply chain； third-party competition；corporate social responsibility；pricing strategy；coordination