Pr:GdVO4crystals　were　grown　by　Czochraliski　method.　The　structure　of　the　crystals　were　studied　by　XRD,　and　the　results　confirmed　that　their　structure　were　the　same　with　the　pure　GdVO4crystal.　The　absorption　spectrum　had　been　measured　from　400　nm　to　3000　nm　at　room　temperature.　We　find　that　the　strength　of　each　absorption　peak　is　much　stronger　in　σ-absorption-spectrum,　so　we　had　better　do　laser　experiments　while　incident　ray　and　the　direction　of　electric　complexor　plumb　with　ray　axis.　The　fluorescence　excited　by　404　nm　laser　was　recorded　separately.　We　find　that　there　is　a　wide　and　powerful　fluorescence-emission　band　in　visual　field　(604　nm,　616　nm),　corresponding　with1D2→3H4.　Comparing　fluorescence　spectra　of　different　doping-content　crystals,　the　fluorescence　intensity　appeared　as　follows:　0.5%＞0.7%＞0.32%.