A bumper rail assembled into a bumper of a vehicle includes a bumper rail, a reinforcing member, and a forming part. A bumper rail is disposed at front. The reinforcing member is disposed at the rear side of the bumper rail and forming a closed section together with the bumper rail. The forming part is integrally formed at an inner side of the bumper rail and is disposed parallel along the longitudinal direction of the bumper rail to increase a stiffness of the bumper rail, the forming part having a pipe shape.