Single　crystals　of　two　new　terbium　oxyborates　Ba4BiTbO(BO3)4　and　Ba1.54Sr2.46BiTbO(BO3)4　were　obtained　by　the　high-temperature　solution　method.　They　crystallize　in　the　hexagonal　P63/mmc　group　(Z　=　2)　with　lattice　parameters　of　a　=　5.41865(9)　Å,　c　=　26.3535(5)　Å,　V　=　670.12(3)　Å3　and　a　=　5.36534(19)　Å,　c　=　26.0661(10)　Å,　V　=　649.83(5)　Å3,　respectively.　Their　crystal　structures　feature　two　kinds　of　layers:　[Tb(BO3)2]n3n-　formed　by　corner-sharing　TbO6　octahedra　and　BO3　triangles,　as　well　as　[Bi(BO3)2O]n5n-　consisting　of　Bi2O13　dimers　and　BO3　groups,　with　alkali-earth　cations　sitting　inside　and　between　the　layers.　In　addition,　solid　solutions　of　Ba4BiTb1-xEuxO(BO3)4　(0　≤　×　≤　0.2)　were　prepared　via　the　solidstate　reaction　method.　The　obtained　products　were　characterized　by　powder　XRD,　SEM,　IR/Raman,　XPS,　DRS,　and　luminescence　spectroscopy.　It　was　found　that　as　the　Eu3+　doped　content　varies　from　x　=　0　to　0.2,　the　emission　color　of　the　Ba4BiTb1-xEuxO(BO3)4　phosphors　can　be　adjusted　from　cyan　to　near-white　and　then　to　orange-red　or　from　green　to　orange　and　then　to　red　under　the　excitation　of　349　and　377　nm,　respectively.　Furthermore,　the　emission　intensities　and　chromaticity　coordinates　were　found　to　be　sensitive　to　the　temperature　for　the　phosphor　Ba4BiTb0.999Eu0.001O(BO3)4　upon　377　nm　excitation.　The　above　results　demonstrate　that　Ba4BiTb1-xEuxO(BO3)4　phosphors　have　potential　as　multifunctional　materials　for　solid-state　lighting　and　temperature　sensing　applications.　©　2024　The　Author(s).