Absorption, fluorescence spectra and lifetime mesurements of Or3+ in the three kinds of glass bases have been performed, and the analysis and calculation of the speotral data based on the ligand field theory have been carried out. The results are consistent with, the experiments. Moreover, it is found that in order of phosphate -> fluorophosphate —fluoride glasses the joiiic contribution of the chemical bond between the central activated ions and ligands increases gradually with, the increase of Racah Β parameters. Corresponding peak positions of absorption spectra and fluorescence spectra shift to shorter wavelength. Meanwhile, the experiments also show that the increase of fluorescence intensity and lifetime and. the weakening of temperature quenching effect of glassed from phosphate to fluorophosphate can be considered as the deoreage of non-radiation probability. In this paper, absorption and fluorescence spectra of Mo3+ in phosphate glass have also been studied,The ligand field strength DQ of Mo3+ is larger in comparison with that of Gr3+.