PURPOSE: To provide an accelerator pedal device which has a simple structure and can be assembled easily.

CONSTITUTION: An accelerator pedal device is provide with an accelerator pedal 2, a bracket 6 which has the accelerator pedal 2 mounted thereto rotatably, and a shaft 1 which is fitted and inserted into a through hole 230 provided in the support part 23 of the accelerator pedal 2 and a mounting hole 60 provided in the bracket 6. A first stopper 21 and a second stopper 22 are provided forward and backward in the direction of insertion of the shaft 1, and an insertion hole 210 in which the shaft 1 is inserted is provided in the first stopper 21. When the shaft 1 is inserted into the through hole 230 and the mounting hole 60 from the insertion hole 210, its elastic engaging part 11 is opened and held between the first stopper 21 and the second stopper 22.