Current　consensus　protocols　for　permissionless　blockchain　cannot　balance　security,　performance　and　centralization　issues.　In　the　paper,　we　present　a　reputation　based　consensus,　FPoR,　which　combines　reputation,　committee　based　consensus,　PBFT,　reward　and　penalization　mechanisms.　FPoR　can　balance　scalability,　security　and　decentralization,　and　promote　fairness,　increase　participation　and　strengthen　security.　Experiment　results　show　that　FPoR　is　with　high　performance　and　scalability,　which　can　be　used　for　permissionless　blockchain.　FPoR　can　also　be　extended　to　permissioned　blockchain　applications.　©　2022　The　Authors