Corrugated beams are widely used in the structural design of cargo floor supports in civil aircraft due to their good load carrying capacity and impact resistance characteristics. In this paper, based on the explicit integral algorithm of transient dynamics and the finite element analysis method, the nonlinear process of corrugated beam structure in crash is calculated and analysed. The results show that the energy-absorbing performance of corrugated beams can be greatly improved after increasing the wavelength and reducing the amplitude and thickness, making them lightweight and efficient energy-absorbing components.