BRAKE PEDAL DEVICE

In a brake pedal device, a brake pedal is connected to a casing with a posture changeable by a brake operation of a driver, and includes an operation unit that is pressed by a driver. A reaction force generating unit is provided inside the casing, and the reaction force generating unit is configured to generate a reaction force with respect to the brake pedal in accordance with an amount of change in the posture of the brake pedal during the brake operation, and to cause the brake pedal to return to a reference position when the brake operation is released. A sensor unit is provided outside the casing, to detect an amount of change in the posture of the brake pedal, and a sensor protector is provided at the casing in a position away from the brake pedal, to cover at least a part of the sensor unit.