Provided is a retractable pedal for an automobile. The pedal comprises a driving support (2), a drive mechanism (4) and a footrest (5), wherein both the driving support (2) and the drive mechanism (4) are installed on the same side of the bottom of an automobile body; the driving support (2) comprises a first transmission mechanism and a first connecting rod (2d), and the front end of the first connecting rod (2d) is fixedly connected to the footrest (5); the first transmission mechanism drives the first connecting rod (2d) to expand and retract; the pedal further comprises at least one driven support (3) which synchronously moves with the driving support (2). According to this pedal, a traditional gear transmission mechanism is omitted so as to reduce manufacturing costs and reduce the generation of abnormal sounds, and the footrest can be ensured to retract in place.