The　closed-loop　supply　chain(CLSC)　pricing　model　is　constructed　based　on　game　theory.　Based　on　Stackelberg　gambling　relations,　separately,　manufacturers　can　realize　their　own　benefit　maximization　only　when　they　consider　separately　retailers　and　the　third　party　take-back　business　response　to　their　decision　making.　Retailers　and　the　third　party　take-back　business　also　need　consider　manufacturers＇　decision　making,　and　they　can　realize　their　own　benefit　maximization.　In　addition,　this　paper　also　compares　prices　and　total　profit　in　the　optimizing　the　whole　CLSC　with　the　ones　in　local　optimizing　chain　and　points　out　that　manufacturers,　retailers　and　the　third　party　take-back　businesses　should　make　price　decision　by　optimizing　CLSC　and　consider　the　market　demand　of　products　and　the　market　supply　demand　of　waste　products.