In this paper, the load transmission characteristics of a hypersonic vehicle model are analyzed by vibration. First, the vibrating acceleration signals are collected at different positions, preprocessed using wavelet package decomposition, then decomposed into a series of intrinsic mode functions (IMFs) using empirical mode decomposition (EMD).The untrue IMFs are removed using the correlation coefficient method, and the Hilbert spectrum of the remaining IMFs is obtained after the Hilbert transform. Finally, the energy distribution differences among different positions in each direction are computed in order to estimate the load transmission characteristics of the hypersonic vehicle model. The results show that most of the air dynamic force can be successfully transmitted inside with low transmission error, and that it performs best vertically.