Two　novel　phosphors　LiBa4(1-x)Eu4xTa3O12(H-LBTO∶xEu3+)and　Li0.25Ba1-xEuxTa0.75O3(C-LBTO∶xEu3+)were　prepared　successfully　by　a　molten　salt　method.The　transformation　between　these　two　structures　was　realized　by　changing　the　sintering　temperature　or　changing　the　Eu3+ions　concentration,which　was　also　demonstrated　by　the　X-ray　diffraction(XRD),scanning　electron　microscopy(SEM),diffuse　reflec-tance　spectra(DRS),and　photoluminescence　excitation(PLE)analyses.Both　the　sintering　temperature　and　the　Eu3+ions　doping　concentration　have　significant　impact　on　the　formation　of　the　crystal　phase.All　these　phosphors　sintered　at　1023　K　exhibit　two　major　luminescence　lines　at　594　and　614　nm　under　near-UV　light　of　395　nm　excitation,corresponding　to　Eu3+ions　typical　transitions　of　5D0→7F1　and　5D0→7F2.The　optimum　concentration　of　Eu3+ions　is　9　mol％for　C-LBTO:xEu3+samples　and　the　quenching　interaction　type　is　the　nearest-neighbor　ion　interaction.The　thermal　stability　of　the　C-LBTO:0.09Eu3+sample　was　investigated　in　detail　and　the　device　application　further　suggests　that　C-LBTO:0.09Eu3+can　be　used　as　a　red　phosphor　for　near-UV　excited　w-LEDs　in　lighting.