A single scan has been performed in Differential Scanning Calorimetry (DSC) at a heating rate of 15^oC/min under non-isothermal conditions to investigate the crystallization kinetics of glassy Se₉₀Sb_10-xAg_x alloys (where x = 2, 4, 6, 8). For this purpose, Handerson’s theory based on non-isothermal method for thermal analysis of single-scan DSC data has been used. The activation energy of crystallization and order parameter has been determined and composition dependence of these parameters has been discussed.