Several Pr3+-doped fluoride glasses with different chemical comPOsitions were prepared. The absorption and fluorescence spectra of the glasses were measured, and some fluorescent properties of glass were calculated by using the Judd-Ofelt theoretical model. It is shown that the fluorescence properties of Pr3+ ion in fluorizirconate glasses are better than those in fluoroaluminate and fluoophosphate glasses, and the radiative transition probabilityand the stimulated emission cross section increase. Its fluorescence bandwidth decreases with the increased substitution of NaCl for NaF in the fluorozirconate glasses.