Abstract: This paper reviews the fuzzy control theories and methods used in AC motor system. Aiming at the control specialties of AC motor system, we discuss and analyze the merits and disadvantages of different fuzzy control methods such as simple fuzzy control, composite fuzzy control, as well as bionic fuzzy control etc. Some typical means to implement fuzzy control are given. Finally, we view the key research problems and development tendencies of fuzzy control in AC motor system in future.