The invention discloses a vehicle pedal regulating device, comprising a pedal installation plate, a forecabin installation plate, a connecting mechanism and a drive regulating mechanism; wherein the pedal installation plate is used for placing the vehicle pedal, the forecabin installation plate is fixed on a forecabin plate of the vehicle, the pedal installation plate is connected with the forecabin installation plate by a connecting mechanism, the drive regulating mechanism is used for driving the pedal installation plate and drives the pedal installation plate and the connecting mechanism to move back and forth to realize back-and-forth regulation of the position of the vehicle pedal. In the invention, a simple structure is applied to the regulating device and position regulation of the vehicle pedal is realized; in addition, the back-and-forth regulation of the vehicle pedal is realized when relative positions of the pedals stay unchanged and heights of the pedals to the ground stay unchanged and driving comfort and safety is not affected. Moreover, the invention has the advantages of flexible installation and good generality.