Provided is a railway vehicle disc brake apparatus that is capable of ensuring sufficient strength and that can be reduced in weight. The railway vehicle disc brake apparatus has: a pair of calliper levers for supporting a pair of pads; a pair of fulcrum shaft members that pivotally support the pair of calliper levers; and a cylinder device for driving the pair of calliper levers around the pair of fulcrum shaft members. Arm sections of the calliper lever have first and second portions that extend in such a manner as to intersect each other in a cross section that is perpendicular to the direction in which said arm sections extend.