In this paper the effect of accelerated aging factors on aging resistance of Massonpine PF-particleboard was analysed and several accelerated-aging tests was compared.It wasfound that freezing affected internal-bond strength when specimen was saturated with water.When moisture content of the tested specimen was low, steaming procedure did not signifi-cantly affect strength.The properties of panel decreased dramatically in the first cycle,Differ.ent accelerated-aging tests meant various degree influences on properties of panal.The loss ofinternal-bond strength was more than that of modulus of rupture by accelerated -aging test.IB could be as the index which evaluated the aging resistance of particleboard.The cyclicsoak-dry test could be used instead of ASTM D 1037 accelerated-aging test. The one-hourboiling test could be used in-plant quality control.