The vehicle body upper structure includes a rear roof rail, a retractor, a webbing, and an anchor. The rear roof rail extends along a roof panel of the vehicle body. The retractor is housed inside the rear roof rail and is fixed to the rear roof rail with a first fastening bolt. For example, the webbing is pulled out in a pull-out direction orthogonal to an axis of the first fastening bolt. A through ring changes a stretching direction of the webbing that restrains an occupant with the webbing to have an acute angle with respect to the pull-out direction.