Two kinds of tellurite glass and glass ceramics are prepared by high temperature melt cooling method and in-situ controlled crystallization method.The crystallization and near infrared luminescent properties are studied.J-O strength parameters,spontaneous emission probabilities,fluorescence branching ratios,fluorescence radiative lifetime of Er³⁺ ions in tellurite glass and glass ceramics are calculated.The fl uorescence spectra are measured under the pumping wavelength of 980nm.The effective linewidth of fluorescence and emiss ion cross sections were calculated. The results show that the high transparent Er³⁺-doped tellurite glass cer amics can be prepared by optimum heat treatment.Heat treatment can enhance the near infrared luminescent ef ficiency and effective luminescent band width.Er³⁺-doped TTL glass ceramics at 1.55μm band can gain better fluo rescence properties than TZBF tellurite glass ceramics,which might be a promising glass matrix material for optical amplifiers .