Abstract: Using the PAM-CRASH software for transient dynamics, a constitutive model of bird is established based on the equation of state. The calculated dynamic response agrees well with experimental results for the aluminum plate under the bird impact. Two different structure types and the same structure with different thicknesses are simulated to model the dynamic response under the bird impact for the leading edge structure. Then, the energy absorptions are compared and analyzed. The research result can be used for the design of leading edge structures.