Abstract: Bi-containing glasses BaBi _{2 – x} Eu _x B ₂ O ₇ (x = 0.00, 0.05, 0.10, 0.20, 0.30, 0.40, 0.50) doped with Eu ³⁺ is obtained. The dependence of the integral intensity of the luminescence on the Eu ³⁺ concentration is revealed. The luminescence quenching starts at the Eu ³⁺ concentrations above 0.20. Other conditions being equal, the maximum luminescence intensity is observed in the BaBi _1.5 Eu _0.5 B ₂ O ₇ specimen. It is shown that the local environment of Eu ³⁺ ions does not depend on the Eu ³⁺ ion content in the studied concentration range.