Abstract: A dynamic surface-sliding-mode consistent control protocol based on a finite time disturbance observer is proposed to address the cooperative control problem of second-order multi-agent systems with unknown disturbances in a directed topology. Firstly, a finite time disturbance observer is designed to estimate and compensate the disturbance quickly via the backstepping method. Secondly, a consensus tracking control protocol is designed by combining the dynamic surface control and sliding mode method. This method not only improves the control accuracy of the system, but also simplifies the design process of the controller. Then, the proposed control protocol is applied under the directed topology to prove the consensus of the leader-following. Lastly, the effectiveness of the proposed method is verified through numerical simulation.