A foot pedal structure for a saddle-type vehicle for preventing peripheral components in the periphery of a brake pedal from being damaged even though the brake pedal and the peripheral components are not widely spaced from each other. A brake pedal includes at least an arm extending in a longitudinal direction of the vehicle from a step support member and a pedal member mounted on a distal end of the arm and extending in a vehicle widthwise direction. An upward extension in the form of a plate member extends upwardly from a treading surface of the pedal member and is disposed on an inner end of the pedal member in the vehicle widthwise direction.