Addressing the design issues of maneuver-assisted hypersonic vehicles in jumping-glide trajectories, the study first derives the dynamics model of the maneuver-assisted jumping-glide trajectory, establishing quantitative relationships between dynamical parameters such as the timing of maneuver assistance and trajectory parameters such as range augmentation. Subsequently, using simulations based on CAV-H model parameters, the study verifies the design principles of maneuver-assisted trajectories under the impact of maneuver assistance on jumping-glide trajectories. Simulation results indicate that the maneuver-assisted operation has minimal impact on terminal velocity for a certain altitude, however, it can significantly enhance the jumping amplitude and glide range. That leads to over 50% increasing of the mid-course range in the given scenario, providing a more flexible optimization space for planning method and maneuver strategy design of maneuver-assisted trajectories for hypersonic vehicles.