Aiming at the bird strike phenomenon， the aerodynamic design of single stage compressor was carried out， and the main design parameters were analyzed. Based on this， the prototype rotor blade was used as the model for bird strike simulation， and the bird strike damage blade model was established. The number of damaged blades was changed in the circumferential direction to generate different calculation models， and the whole loop numerical simulation was carried out to investigate the influence of different number of damaged blades on the aerodynamic performance of the compressor， investigate and analyze the details of the flow field， and summarize the change law of the aerodynamic characteristics of the damaged rotor. The calculation results show that the aerodynamic performance and stability of compressor rotors with the number of damaged blades of 1，2 and 3 are significantly decreased at the design speed. The efficiency of the maximum efficiency condition is reduced by 1.37%， 2.55%， 3.57%， the pressure ratio is reduced by 0.19%，0.29%，0.40%， the flow range of the stable operation is reduced， and the stability margin is reduced by 14.33%，25.69%，31.97%，respectively.