In　this　paper　the　white-light-emitting　Gd2P4O13:Tm3+-　Dy3+　phosphors　were　synthesized　via　high　temperature　solid-state　reaction　method.　The　X-ray　diffraction　of　the　Gd2P4O13:Tm3+-　Dy3+　phosphors　were　performed.　Concentration　quenching　of　Gd2P4O13　with　Tm3+　-　doped　ions　was　studied　in　detail.　The　luminescence　excitation,　emission　and　decay　measurements　were　performed.　Energy　transfer　between　Tm3+　and　Dy3+　have　been　studied.　The　phosphor　Gd2P4O13:Tm3+　exhibit　strong　blue　emission　ranging　from　440　nm　to　470　nm　of　Tm3+(H-3(6)　-＞　D-1(2))　under　359　nm　excitation.　The　emission　peak　at　456　nm　is　the　luminescence　of　Tm3+(D-1(2)　-＞　F-3(4)).　Energy　transfer　process　in　the　Dy3+-Tm3+　system　is　proved.　This　paper　includes　the　color　perception　analysis　of　synthesized　phosphors.　The　coordinates　of　Gd2P4O13:1%Tm3+-3%Dy3+　phosphor　is　very　close　to　the　white-lighting　location.