A braking device (7) and a controller (8) are provided. The braking device (7) individually adjusts braking forces that are respectively generated at wheels (3) of a vehicle (2). The controller (8) executes braking force distribution control for individually controlling the braking forces at the right and left wheels (3) of the vehicle (2) such that slip conditions of the right and left wheels (3) are equal to each other through control of the braking device (7). The controller (8) executes the braking force distribution control on the basis of an upper limit of a right and left braking force deviation that is a deviation in braking force between the right and left wheels (3).