For a missile with blended lateral jets and aerodynamic fins, the problem of output tracking, that is the tracking of lateral acceleration of missile, is discussed in this paper. Since the fast response requirement on the lateral acceleration, lateral jets are preferable to aerodynamic fins, both of which can provide attitude control torque, but with different response speeds. For this situation, the output is described via Fliess functional expansion based on the discrete characteristic of lateral jets. The design for control law of lateral jets attitude control system is formulated to an optimization problem. Simulation results show the effectiveness of the proposed method.