This session concerns with the novel design methods and theoretical analysis on the disturbance rejection control.We will present the promising modifications and novel designs to achieve better performance despite the uncertainties in system.On the other hand,the rigorous justification of the approaches featured with disturbance estimating and compensating will be shown via performance analysis on both time-domain and frequency-domain.We will also discuss the open problems which will have huge impacts in developing the control theory of disturbance rejection.