The　Ca0.75Mg0.2Tb0.02Eu0.03(WO4)1-x(MoO4)x　(x=0-1.0)　series　phosphors　were　synthesized　by　chemical　co-precipitation　method.　The　crystal　structure　and　photoluminescence　properties　of　the　phosphors　were　characterized.　The　results　show　that　the　Ca0.75Mg0.2Tb0.02Eu0.03(WO4)1-x(MoO4)x　phosphors　with　different　MoO42-　doped　amounts　belong　to　tetragonal　phase　solid.　The　luminous　intensity　of　the　phosphors　under　excitation　of　275　nm　firstly　increases　and　then　decreases　with　the　increase　of　MoO42-　doped　amount.　When　x=0.6,　the　luminous　intensity　of　phosphor　with　MoO42-　doping　is　6　times　greater　than　that　without　MoO42-　doping.　The　surrounding　environment　of　the　rare　earth　ions　and　the　symmetry　of　the　local　crystal　field　can　be　tuned　by　MoO42-　doping,　thus　improving　the　transfer　efficiency　of　the　O2-→Eu3+　electromigration　and　increasing　the　energy　transfer　efficiency　of　between　the　matrix　and　Tb3+　ions　and　Eu3+　ions.　©,　2015,　Chinese　Ceramic　Society.　All　right　reserved.