In the process of manufacturing 7075 aluminimun alloy thick plate, the non homogeneity of plastic deformations and mechanical properties of the material will generate residual stresses. During the following high speed machining process, the release and redistribution of residual stresses are key to deformations of aeronautical monolithic component with the removal of material. Therefore, the study of the analytical method on the residual stress release and redistribution can more clearly understand the evolution mechanism of machining deformation, which is the core link of controlling the machining quality. This is because it is very important for the realization of machining process with high efficiency and precise. Through equaling the removal of materials to the release of residual stresses, the residual stresses remained in the aeronautical monolithic component are converted into the external force according to the static equilibrium conditions, the analysis model is deduced for machining deformations based on the small deformation theory. Because the overall consideration on position variation is done by the tension/compression of neutral surface, bending of neutral surface, and rotation of end surface, the superposition principle can be used to formulize the mechanical model of residual stress redistribution. The proposed analytical model can be suitable for the accurate calculation of the machining deformations of aeronautical monolithic component, in addition to the analysis of the residual stress redistribution. The comparison among the model calculations, the simulated values and the experimental measurement data shows that, both the amplitude and deformation curve, the model calculations are good agreement with the simulated values. Moreover, the measurement error of residual stresses causes the little difference of the amplitude of the model calculations with the experimental measurement data, though the deformation curves of the two have a good agreement with each other.