The thermal behavior of the bio-oils produced from pyrolyzing the mixture of different proportional rice husk and waste tires and its kinetics of evaporation have been studied using thermogravimetry at a heating rate of 10 K min(-1), with N-2 at 1 atm. As a comparison, the thermal behavior of diesel 0# was also investigated. It shows that the kinetic equation obtained by Achar's differential method and Coal-Redfern's integral method are satisfied to explain the oil properties and quite agreed with the experimental data. The mean value of initial and final temperature of mass loss of the oils, which was produced by pyrolyzing the mixture of 50 wt% rice husk and 50 wt% waste tires with SBA-15 as catalyst, is equal to that of diesel 0#. Through established kinetic equations of the evaporation process, the pre-exponential factor and evaporation of heat (Delta H-vap) for the oils are provided. It shows that Delta H-vap of oils, which is in the range of 67.7 and 120 kJ/mol are lower than that of diesel 0# being 136.1 kJ/mol.