Abstract: A design method of an airborne stabilized-aiming system based on quantitative feedback theory (QFT) was proposed to overcome the influence of model perturbation and disturbances on the system. The method takes the azimuth loop as the discussion object and the model parameters as the parameter values of the azimuth loop. The strong robustness of the model perturbation system can be obtained in a certain range by the composite consideration to the models uncertainty range of the object control and system performance specification. The simulation results indicate the performances of the designed control system are better than the PID systems.