The　deniable　authentication　and　designated　verifier　signature　protocol　can　achieve　the　property　of　deniability　by　a　transcript　simulation　algorithm,　so　two　protocols　are　similar　in　the　concepts　and　application　scenarios.　In　this　paper,　we　will　avoid　the　research　ideas　of　classical　cryptography　and　research　how　to　convert　quantum　deniable　authentication　protocol　into　quantum　designated　verifier　signature　in　this　universal　case　that　the　owner　of　the　signature　and　the　signer　isn＇t　the　same　user　in　quantum　designated　verifier　signature　scheme　such　as　electronic　ID　cards　and　e-passports.　A　mode　on　converting　quantum　deniable　authentication　into　quantum　designated　verifier　signature　is　firstly　proposed　by　introducing　quantum　signature　with　public　verifiability,　including　the　entities　and　the　implementation　process　converting,　and　then　a　real　quantum　designated　verifier　signature　scheme　is　proposed,　which　satisfies　all　security　requirements　of　a　designated　verifier　signature　scheme　and　can　withstand　intercept-resend　attack　and　impersonation　attack　and　entangle-measure　attack.