Nano-sized　red　emitting　phosphors　of　SrBPO5:Sm3+　were　synthesized　by　a　combustion　synthesis　method　at　ignition　temperatures　of　650°C　using　urea　as　a　fuel　and　H3BO3　as　a　flux.　The　phase　structure,　morphology　and　luminescence　properties　of　the　samples　were　investigated.　The　results　show　that　the　prepared　phosphor　powder　samples　are　a　pure　phase　of　SrBPO5,　which　trigonal　system,　space　group　for　P3121.　The　phosphor　powder　with　the　particle　size　of　200　nm　is　well-dispersive.　The　main　emission　peaks　were　located　at　558,　596　and　645　nm　under　the　excitation　of　404　nm,　corresponding　to　4G5/2→6H5/2,　4G5/2→6H7/2　and　4G5/2→6H9/2　transitions,　respectively.　Furthermore,　when　the　optimal　doping　content　of　Sm3+　is　10%　in　mole,　and　the　content　of　H3BO3　used　as　raw　material　and　fluxes　is　0.8%　in　mole,　the　SrBPO5:Sm3+　phosphors　exhibit　an　optimum　luminescent　intensity.　The　SrBPO5:Sm3+　phosphors　are　promising　as　red-emitting　phosphors　by　near-UV　excitation　for　white　light　emitting　diodes.