In　this　paper,　a　protocol　for　quantum　millionaire　problem　with　continuous　variables　is　proposed.　In　the　protocol,　two　participants　can　compare　the　values　of　their　fortune　with　the　assistance　of　a　semi-trusted　third　party　(STTP).　Only　EPR　states　are　exploited　in　our　protocol　while　most　other　protocols　exploited　d-dimensional　Bell　states.　Two　participants　are　just　required　to　perform　single　particle　operations,　which　makes　our　protocol　more　efficiently.　Our　protocol　can　ensure　fairness,　correctness,　security　and　high　efficiency　as　well.　In　our　protocol,　only　the　two　participants　can　deduce　the　results　of　comparisons,　others　include　STTP　will　learn　no　information.　Our　protocol　can　resist　various　kinds　of　attacks　from　both　the　outside　eavesdroppers　and　the　inside　participants,　even　the　STTP.