A railway vehicle disc brake apparatus comprising: a caliper lever (3a,3b) configured to be pivotal about a predetermined fulcrum shaft (9a, 9b) so that a pad (102a, 102b) is movable in a direction extending toward a disc and in a direction extending away from the disc; and a drive device that drives the caliper lever (3a,3b) about the fulcrum shaft (9a, 9b), wherein the caliper lever (3a, 3b, 3aA, 3aB) includes an effort-side arm (25a, 25b, 26a, 26b, 25aA, 26aA, 25aB, 26aB) coupled to the drive device, a fulcrum portion (27a, 28a, 27b, 28b, 27aA, 28aA, 27aB, 28aB) that extends from the effort-side arm (25a, 25b, 26a, 26b, 25aA, 26aA, 25aB, 26aB) and is coupled to the fulcrum shaft (9a, 9b), two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) that extend from the fulcrum portion (27a, 28a, 27b, 28b, 27aA, 28aA, 27aB, 28aB), and a load portion (32a, 32b, 32aA, 32aB) that connects the two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) to each other and holds the pad (102a, 102b) with a predetermined load shaft, the two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) are inclined so that a distance between the two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) decreases as the load portion (32a, 32b, 32aA, 32aB) becomes closer, and each of the load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) is inclined relative to a reference plane that is orthogonal to a direction in which the load portion (32a, 32b, 32aA, 32aB) extends, the railway vehicle disc brake apparatus being characterized in that an outer surface in the load portion (32a, 32b, 32aA, 32aB) includes a recess which is arc-shaped as viewed from beside and smoothly continuous with each of the outer surface in each of the two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB). a caliper lever (3a,3b) configured to be pivotal about a predetermined fulcrum shaft (9a, 9b) so that a pad (102a, 102b) is movable in a direction extending toward a disc and in a direction extending away from the disc; and a drive device that drives the caliper lever (3a,3b) about the fulcrum shaft (9a, 9b), wherein the caliper lever (3a, 3b, 3aA, 3aB) includes an effort-side arm (25a, 25b, 26a, 26b, 25aA, 26aA, 25aB, 26aB) coupled to the drive device, a fulcrum portion (27a, 28a, 27b, 28b, 27aA, 28aA, 27aB, 28aB) that extends from the effort-side arm (25a, 25b, 26a, 26b, 25aA, 26aA, 25aB, 26aB) and is coupled to the fulcrum shaft (9a, 9b), two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) that extend from the fulcrum portion (27a, 28a, 27b, 28b, 27aA, 28aA, 27aB, 28aB), and a load portion (32a, 32b, 32aA, 32aB) that connects the two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) to each other and holds the pad (102a, 102b) with a predetermined load shaft, an effort-side arm (25a, 25b, 26a, 26b, 25aA, 26aA, 25aB, 26aB) coupled to the drive device, a fulcrum portion (27a, 28a, 27b, 28b, 27aA, 28aA, 27aB, 28aB) that extends from the effort-side arm (25a, 25b, 26a, 26b, 25aA, 26aA, 25aB, 26aB) and is coupled to the fulcrum shaft (9a, 9b), two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) that extend from the fulcrum portion (27a, 28a, 27b, 28b, 27aA, 28aA, 27aB, 28aB), and a load portion (32a, 32b, 32aA, 32aB) that connects the two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) to each other and holds the pad (102a, 102b) with a predetermined load shaft, the two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) are inclined so that a distance between the two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) decreases as the load portion (32a, 32b, 32aA, 32aB) becomes closer, and each of the load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB) is inclined relative to a reference plane that is orthogonal to a direction in which the load portion (32a, 32b, 32aA, 32aB) extends, the railway vehicle disc brake apparatus being characterized in that an outer surface in the load portion (32a, 32b, 32aA, 32aB) includes a recess which is arc-shaped as viewed from beside and smoothly continuous with each of the outer surface in each of the two load-side arms (29a, 30a, 29b, 30b, 29aA, 30aA, 29aB, 30aB).