Currently the fractional order controller becomes much more popular in automation engineering due its flexible tuning technique of control parameters. Moreover, it may not be possible to remove the steady-state errors for every states by using traditional sate feedback integer control approach. Therefore, in this paper a state feedback based fractional order controller is designed for rotary flexible link system. In this scheme, Bode's ideal transfer function is considered as a bench mark to obtain similar transient response of closed-loop system. Based on these idea, trajectory tracking performance of a rotary flexible link is demonstrated through computer simulation program. Effectiveness and usefulness of the proposed fractional control scheme is shown as well. © 2018 IEEE.