Abstract: This paper discribes a new method for calculating the evaporation history of a droplet of multicomponent fuel.In this method kerosene is treated as a multicomponent fuel posed of ten fictitious components.The calculation is done by applying configuration of Kerosene Distillation.Also a new method is introduced to find the physical properties of the fictitious components.Finally,the methed is developed to calculate the evaporation history of a multicomponent liquid droplet by means of the evaporation equations.It is a more reliable and practical method than that used before.Some computational results are presented for three kinds of Chinese Aviation Kerosene,and compared to data obtained from our experiments favourably.