The relative velocity is always very large when the bird impacting on the aircraft windshield, and the body of the bird will present the property of fluid. This kind of problem belongs to the category of fluid dynamics.At first, this paper analyzed a numerical simulation of bird impacting on aluminum plate with the method of ALE,and the result of simulation and the test data are compared. Then a full scale model which contains windshield,framework and the skin is set up. The framework and the skin are made of composite materials. Numerical study of bird strike on this model is done and the result proves that the structure meets the design requirements. At present,a full scale framework of aircraft windshield with composite materials has not been applied to the civil aircraft yet,so the study of this windshield structure with composite materials is of great significance.