Abstract: The combustion characteristics of the coke from the pyrolysis of asphalt have been studied using thermogravimetric analysis at atmospheric pressure. The samples were heated to the preset temperature under nitrogen which was changed into air quickly. The coke was burnout. A first-order model was established to describe combustion of the coke. In the model, the activation energy, E, is independent of the type of coke, and equal to 180 kJ/mol. The frequency factor not only depends on the coke type, but also the combustion conditions, such as temperature.