This　paper　investigates　a　class　of　nonlinear　systems　with　actuator　fault.　In　particular,　fuzzy　logic　systems　have　been　used　to　approximate　the　unknown　nonlinear　functions,　backstepping　procedure　is　adopted　to　design　controller　for　the　system　with　mismatched　condition,　command　filter　is　utilized　to　eliminate　the　explosion　of　complexity　of　the　backstepping　and　also　to　compensate　the　output　of　a　filter　subjected　to　the　derivative　of　the　virtual　control.　The　stability　of　the　closed-loop　system　and　the　convergence　of　the　tracking　error　are　proved　via　Lyapunov　Theorem.　In　addition,　two　numerical　simulation　examples　are　illustrated　the　effectiveness　of　the　proposed　approach.　(c)　2021　The　Franklin　Institute.　Published　by　Elsevier　Ltd.　All　rights　reserved.