Abstract: It is important to design a suitable control schedule for aircraft engine in order to exploit its full performance potentiality and to enhance its reliability.Comparison and analysis of uninstalled performance of engine with different control schedules are carried out in this paper.The result indicates that the control schedules for the modern high thrust-weight ratio turbofan are superior significantly to the traditional control schedules of engine in enhancement performance at high speed and improvement of the working conditions of the hot section components.