This paper calculates the loading stress and surface deflection of flight strip thin layer asphalt pavement with the finite element of three-dimensional isoparametric element, analyzes the effects of the subgrade resilient modulus, the base resilient modulus, and thickness in the completely continuous interface condition. Results indicate that the semi-rigid base underside flexural - tensile stress almost has linear change with the subgrade resilient modulus, the base resilient modulus, and thickness. The surface underside is pressed, and the stress has very small change, which is not effected basically. The surface deflection has linear change with base thickness and curve changes with subgrade resilient modulus and base resilient modulus.