Vehicle Travel Control Method and Vehicle Travel Control Device

A vehicle travel control method including: determining whether or not a target travel route of a vehicle traveling on a first road is a route leading to a second road, the second road branching off from the first road; when the target travel route is a route leading to the second road, calculating a first trajectory linking a branch point at which a second link representing a lane shape of a second lane on the second road, branches off from a first link representing a lane shape of a first lane on the first road, and a point on the second link, the point being located a predetermined distance away from the branch point along the second link, and setting a target travel trajectory, based on the first trajectory; and controlling the vehicle to travel along the target travel trajectory.