As　an　important　part　of　the　magnetic　resonant　wireless　power　transfer　technology,　the　rectifier　circuit　plays　a　key　role.　The　quality　of　its　performance　will　directly　affect　the　transmission　efficiency　of　the　WPT　system.　This　paper　proposes　the　full-bridge　and　voltage-doubler　rectifier　loss　calculation　models　combined　with　the　circuit　structures　and　operating　principle.　On　this　basis,　it　reveals　that　the　voltage-doubler　rectifier　circuit　can　greatly　reduce　the　loss　and　improve　the　overall　efficiency　of　the　WPT　system　in　the　case　of　high　voltage　and　low　current,　and　the　optimized　effect　will　be　greater　as　the　decreasing　of　equivalent　resistance　ESR　of　the　filter　capacitor.　Experimental　results　show　that　the　efficiency　of　the　WPT　system　based　on　the　voltage-doubler　rectifier　structure　can　be　increased　by　2%　compared　to　the　traditional　method,　and　the　optimized　efficiency　of　the　WPT　system　is　93%　at　rated　operating　conditions,　which　verifies　the　theory　analysis　to　be　correct　and　flexible.　©　2023,　The　Author(s),　under　exclusive　license　to　Springer　Nature　Singapore　Pte　Ltd.