| Based on the reinforced mechanism of fibers, the paper analyze the capacity of fiber asphalt and fiber strengthened asphalt mixture through the test of fiber asphalt ,the Marshall test and pavement performance test of fiber strengthened asphalt mixture. According to the former analysis ,the paper put forward some advice of the design method of fiber strengthened asphalt mixture and its appliance.Through the test of fiber asphalt shear intensity, the paper put forward the coefficient of fiber asphalt shear intensity-temperature susceptibility. The paper alsoput forward two concept ,the incipient deformation of wheel track and the time cumulation of rut deformation, to appraise high temperature stability of asphalt mixture accurately. |