Transparent Eu²⁺-doped BaAl₂Si₂O₈ glass-ceramics have been prepared by traditional glass melting method. The evolution of synthesized materials during thermal treatment in air atmosphere was studied by X-ray diffraction analysis and photoluminescence spectroscopy. Thermal treatment of glass in air atmosphere leads to the formation of numerous crystal phases, the main of them is BaAl₂Si₂O₈. Obtained glass-ceramics demonstrate strong blue emission (λ_max = 420 nm) related to the 5d-4f⁷ transition of Eu²⁺ ions. Prepared transparent Eu²⁺-doped BaAl₂Si₂O₈ glass ceramics can be considered as potential candidate for practical application in powerful white light-emitting diodes.