To　address　the　issues　and　deficiencies　of　the　traditional　secret　sharing　scheme,　we　propose　a　rational　secret　sharing　mechanism　which　applies　game　theory　into　secret　sharing　protocol.　It　mainly　focuses　on　the　secret　sharing　participants,　who　are　rational,　selfish　and　want　to　obtain　the　maximum　benefit,　how　to　detect　cheat　and　take　some　punishable　strategies　to　avoid　being　deceived　under　the　condition　of　not　revealing　their　secret　share.　By　detailed　analysis,　we　find　that　the　scheme　combining　with　the　advantages　of　game　theory　and　traditional　secret　sharing　is　feasible,　secure　and　effective.