Width-adjustable wheelchair pedal

The utility model discloses a width-adjustable wheelchair pedal, which comprises a component assembly, the component assembly comprises a pedal box, a foot placing area, a first connecting rod and a second connecting rod, the pedal box is arranged in the middle of the component assembly, the foot placing area is arranged above the pedal box, the first connecting rod is arranged at the left front part of the pedal box, and the second connecting rod is arranged at the right front part of the pedal box. The second connecting rod is arranged at the left rear part of the pedal box; the extension area comprises a motor, an extension plate, an extension rod, a contraction rod and a limiting block, the motor is arranged at the rear position of the interior of the pedal box, the extension plate is arranged at the front side position of the interior of the pedal box, the motor is connected with the extension plate through the extension rod and the contraction rod, the extension rod is arranged above the contraction rod