Based　on　blockchain　and　quantum　signature,　a　novel　E-payment　protocol　is　proposed　in　this　paper.　Our　E-payment　protocol　could　protect　user＇s　anonymity　as　the　traditional　E-payment　systems　do,　and　also　have　unconditional　security　which　the　classical　E-payment　systems　can　not　provide.　Our　scheme　adopt　the　techniques　of　blockchain,　quantum　key　distribution,　one-time　pad　and　quantum　proxy　blind　signature.　Furthermore,　compared　with　the　existing　quantum　E-payment　systems,　the　blockchain　technology　is　introduced　to　make　our　scheme　more　secure.