Infrared glasses are one of the key window materials of military and civil systems, gaining the high properties and large size glass is also a big challenge to it. BaO is introduced into TeO2 containing fluoroaluminate glass, because of its evaporation and devitrification tendency, and it is found that BaO significantly reduce the evaporation during melting process, and improve the thermal stability of glass. The Raman spectra show that BaO can inhibit the separation of rich TeO2 glass phase, and is conducive to the harmonious fusion of tellurite and fluoride glass, promoting the stability of the glass network. The obtained glass has excellent comprehensive properties, as well as cheaper and higher adaptability than CaF2 crystal.