Se-based glass is an important system on account of its excellence glass formation ability.The Ge₄Se₉₆ glass was prepared by melt quenched method. The stepwise method for measuring specific heat (C_p) was studied, C_p of Ge₄Se₉₆ glass was then measured and the relation of and temperature T for undercooled liquid was determined. The characteristic temperatures (the strain point, annealing point, glass transition point, yielding point,and soften point) were determined by thermal analysis. The result shows that the glass transition point is 81.5 ℃; the average thermal expansion coefficient is ΔL/L=(0.0557*T-1.7576)/1000. With the result of C_p, the Gibbs energy and the entropy curves were calculated. The Kauzmann temperature can then be determined as T_k=239K.