Inspired by (12-16, an improved prescribed performance function(PPF)is incorpo rated into the control design. An error transformed system is derived by applying the PPF on the original error system. Conscquently, the error rates of the original error system can be guaranteed within the prescribed bound provided the transformed system is stable. For this purpose, an adaptive prescribed performance control(APPdesigned for uncertain gyros in the presence of system uncertainties and external disturbance. A comparative example is given to emphasize the effectiveness of the proposed APPC schemehe organization of this paper is described as follows. In Section 2. svstem model is derived. and the assumptions are also given. In Section 3, a robust fuzzy adaptive feedback control approach is developed, and the stability of the closed-loop system is proved. The simulation results are presented to demonstrate the effectiveness of the proposed control scheme in Section 4. Conelusions are presented in Section 5