A carbody support device of a railway vehicle, including support mechanisms 110 and 210 respectively installed between a front bogie 11 and a carbody 20 and between a rear bogie 12 and the carbody 20 in a traveling direction, and supporting the carbody against the respective bogies. The support mechanisms 110 and 210 regulate both the front bogie 11 and the rear bogie 12 inclining in the same vehicle width direction with respect to the carbody 20 when the railway vehicle travels through a curve, while the support mechanisms 110 and 210 permit the front bogie and the rear bogie inclining in different vehicle width directions.