Dy³⁺-doped, Tb³⁺-doped and Tb³⁺/Dy³⁺ codoped tellurium-germanium-barium (TeO₂-GeO₂-BaO) glasses are prepared by high temperature melt-quenching method. The total mole fraction of the network formers of both TeO₂ and GeO₂ is summed up to 66.6 %. The luminescent performances of TeO₂-GeO₂-BaO glasses are systematically studied by transmittance and photoluminescence spectra. The optimal doping concentration of Dy³⁺ and Tb³⁺ ions in TeO₂-GeO₂-BaO glasses is determined. And the efficient energy transfer process from Dy³⁺ to Tb³⁺ ions are observed clearly. The developed TeO₂-GeO₂-BaO glass is featured with density of over 5.0 g/cm³, decay time of lower 1 ms, and transmittance of reaching 85% in 400-700 nm wavelength regions, which suggest that the investigated TeO₂-GeO₂-BaO glass is of significance in scintillation application for detection of high-energy rays.