During the construction of asphalt pavement, the important properties of asphalt mixture mainly include water stability, fatigue resistance, high temperature stability and durability. In the proportion of asphalt mixture, in order to increase the high temperature stability of asphalt, it is necessary to increase the aggregate particles and reduce the amount of oil used, but the large particles are easy to cause cracks on the pavement and poor durability; in order to further overcome the problem of cracks, it is necessary to use more amount of asphalt with larger penetration and fine mixture, but at the same time, rutting will occur in high temperature season; in order to ensure the roughness of asphalt pavement, the asphalt with good skid resistance shall be used; in order to ensure the durability of asphalt pavement, asphalt mix proportion shall be determined according to the climate, temperature, terrain and other conditions of the pavement construction area.