Abstract: There is strong nonlinear in the model of an aircraft because flight parameters may change violently in the case of large maneuver flight within the full flight envelope. The traditional PI controller can not guarantee the good control performance within the full flight envelope. A new kind of fuzzy control method is presented in this paper. The fuzzy control method integrates optimization of fuzzy control function and self-regulation gain of fuzzy control systemadaptively in the control system, which could largely improve qualities and adaptability of control system. The new kind of fuzzy control method has been used in the design of integrated flight/pusher system of aircraft to control large maneuver flight. Considering the nonlinear six-freedom model of the aircraft and big maneuver flight, it is demonstrated by digital simulation that this new fuzzy control method gets good control results.