Abstract: In view of the Semi-finishing and finishing process of the integral impeller, an optimization strategy for the processing process of the integral impeller with non-uniform allowance based on regenerative flutter control was proposed. By using the finite element analysis software to obtain the approximate milling force coefficient and natural frequency of the process system, and based on the regenerative flutter analysis theory, the comparative diagram of the ultimate stability lobes of the milling process with uniform allowance and non-uniform allowance was established. Finally, two kinds of blades with uniform allowance and non-uniform allowance are tested and verified by cutting experiments, and it is proved that the optimization design strategy of non-uniform allowance process has obvious effect on suppressing flutter. It has certain guiding significance for the actual machining and production of integral impeller.