A　new　europium　borate　EuCd3(AlO)(3)(BO3)(4)　has　been　prepared　by　the　high-temperature　solution　reaction　at　850　degrees　C　and　structurally　characterized　by　single　crystal　XRD　analyses.　It　belongs　to　gaudefroyite　type　of　structure,　crystallizing　in　the　polar　hexagonal　space　group　P6(3)　with　a　=　10.390　(2)　angstrom　and　c　=　5.7244　(14)　angstrom.　Its　structure　features　a　three-dimensional　framework　composed　of　1D　[AlO4](n)(5n-)　chains　that　are　bridged　by　BO3　triangles,　with　small　channels　accommodating　Eu3+/Cd2+　ions　only　and　big　channels　hosting　Eu3+/Cd2+　ions　together　with　BO3　groups.　The　existence　of　BO3　groups　was　confirmed　by　vibrational　spectroscopy.　The　photoluminescence　of　EuCd3(AlO)(3)(BO3)(4)　was　studied.　The　emission　spectra　consist　of　groups　of　lines　in　the　red　spectral　region　due　to　D-5(0)-＞　F-7(j)　(j　=　1,　2,　3,　4)　electronic　transitions　of　Eu3+　ions　and　the　decay　curves　show　the　biexponential　behavior.　Moreover,　band　electronic　structure　has　also　been　investigated.