Micro-Raman spectroscopy was applied to characterize the ion-exchange-induced vitrification of silicate glass-ceramics with lithium metasilicate crystalline phase. In parallel, the glass-ceramics vitrification was simulated on the base of the theory developed. Comparison of the data obtained with micro-Raman spectroscopy with the results of the simulation allowed revealing the kinetic parameters of vitrification process and evaluating the corresponding activation energies. These experimental approach and theory can be applied to other types of glass-ceramics.