The polycrystalline samples of LiSrBO 3 :RE 3+ were synthesized by high-temperature solid-state reaction. The influence of different rare earth dopants, i.e. Dy 3+ , Tb 3+ , Tm 3+ and Ce 3+ , on thermoluminescence (TL) of LiSrBO 3 phosphor was discussed. We also investigated some dosimetric characteristics of LiSrBO 3 :Tm 3+ . The effect of the concentration of Tm 3+ on the TL intensity was investigated and the result of which showed that the optimum mole fraction of Tm 3+ was 1%. The TL kinetic parameters of LiSrBO 3 :0.01Tm 3+ were calculated by the computer glow curve deconvolution (CGCD) method. We also studied the three-dimensional (3D) TL emission spectrum of LiSrBO 3 :0.01Tm 3+ under gamma-ray irradiation. The dose-response of LiSrBO 3 :0.01Tm 3+ to γ-ray was linear in the range from 1 to 400mGy.