Aiming at improving the damage-mitigation effect and guaranteeing the flight performance,a damage-mitigating controller based on the modified prescribed performance algorithm is designed for the wings of the Hypersonic Flight Vehicle (HFV) during hypersonic flight.Firstly,the stress condition of the critical component of the wing is analyzed,and the damage model is constructed to describe the real-time damage evolution.Secondly,based on the prescribed performance algorithm,the exponent term and the error transformation function are modified to satisfy the demand of the HFVs dynamics.Finally,a corresponding attitude damage-mitigating controller is designed by using the HFV model.The simulation results prove the validity of the designed controller.