The work aims to relax and equalize the shot peening surface processing stress of 7075 aluminum alloy thin-walled components, the finite element model of platform vibration stress relief (VSR) was established by ANSYS.Through modal analysis and harmonic response analysis, the best excitation frequency and sample clamping position are obtained.On this basis, the thin-walled componentsare placed on the platform for VSR treatment to verify the simulation results and evaluate the effect of surface stress on the specimens.The results show that when the sub-resonance frequency is 112Hz, the specimens are symmetrically arranged at the zero amplitude and the maximum bending position of the platform. After VSR, the stress relaxation occurs on the surface of the specimens. The relaxation rates are 29.5% and 33.3%, respectively. Furthermore, the non-uniform fluctuations are 20.3% and 20.7%, respectively.However, the degree of relaxation is not uniformalong the direction of vibration, which indicates that the exciting force causes the micro-yield of material microstructure, and the degree of yield is related to the stress intensity.In this paper, the re-aging and position overlap method is proposed to reduce the stress relaxation inhomogeneity to 9.9% and 15.9%, respectively, improving the stress homogenization. The research work provided a reference for the surface stress homogenization of thin-walled components.