This　paper　reports　the　synthesis　of　the　raw　material.　Crystal　growth　and　spectral　properties　of　TM3+/Yb3+:GdVO4.　For　polycrystalline　raw　material　of　rare　earth　(Tm3+,　Yb3+)　-doped　GdVO4　were　synthesized　using　liquid-phase　reaction　method　in　pH　=　7.0-7.5.　The　Tm3+/Yb3+:　GdVO4　crystal　with　the　dimension　Phi30　x　35　mm(2)　was　obtained　by　the　Czochralski　method.　The　absorption　spectrum　was　measured　at　room　temperature.　According　to　the　Judd-Ofelt　theory　the　parameters　of　oscillator　strengths　Omega(lambda)　were　calculated:　Omega(2)　=　3.86　x　10(-20)　cm(2),　Omega(4)　=　0.65　x　10(-20)　cm(2),　Omega(6)　=　0.73　x　10(-20)　cm(2).　(C)　2004　Elsevier　B.V.　All　rights　reserved.