The thermoluminescence (TL) properties of Ce 3+ doped NaSr 4(BO 3) 3 phosphor under the β-ray irradiation were reported. The polycrystalline sample was synthesized by high temperature solid-state reaction. The TL glow curve of NaSr 4(BO 3) 3:Ce 3+ phosphor was composed of only one peak. TL kinetic parameters of NaSr 4(BO 3) 3:Ce 3+ were deduced by the peak shape method, the activation energy ( E) was 0.590 eV and the frequency factor was 1.008×10 6 s −1. TL dose response was linear in the range of measurement. The 3-dimensional (3D) TL emission spectrum was also recorded, the emission spectrum consisted of two bands located at 441 and 479 nm respectively, corresponding to the characteristic 4f 05d 1→ 2F (5/2, 7/2) transitions of the Ce 3+ ion. The fading behavior of the NaSr 4(BO 3) 3:Ce 3+ phosphor over a period of 15 d was also studied.