In this work, studies the effect of Nd₂O₃ concentration on the physical properties of strontium barium phosphate glasses. The glass samples were prepared by the melt-quenching technique at 1200 ^๐C. The results found that, when the Nd₂O₃ concentration doped in glasses is increased, the result shows the increasing trends of the density, while the molar volume were decreased. The refractive index of glass samples has increasing trends when Nd₂O₃ concentration increases. Furthermore, the Vickers hardness of barium phosphate glasses tended to increase with increasing Nd₂O₃ contents up to 1.00 mol% thereafter decrease.