To provide a pedal device by which the number of part items can be reduced and also the installation workability of a nut for a pedal bracket installation can be improved.

A switch support cylinder 23 is screwed to a welded nut 17 stuck to the upper wall 6 of a pedal bracket 1 and a stop lamp switch 19 is installed on the upper surface side of the upper wall 6 and also an operation shaft contact plate 27 by which the operation shaft 24 is contacted to a brake pedal 9 is installed. A bracket for stop lamp switch and stay for stop lamp switch needed on a technique so far are abolished and the number of part items can be reduced and the cost of the device can be reduced as well. By the abolition of the bracket for stop lamp switch existed near the axial line G of an installation nut 3 by an usual technique, an impact socket is not interfered and the tightening workability of the installation nut 3 can be improved.