The invention discloses a pedal capable of freely adjusting angle and a vehicle body comprising the pedal. The pedal comprises a pedal rod, a mounting rod and an adjusting bolt, the pedal rod is provided with a through hole, one end of the through hole is provided with an inwards-concave conical surface, one end of the mounting rod is provided with a conical protrusion matched with the inwards-concave conical surface, the mounting rod is provided with a threaded hole, the conical protrusion is contained in the space of the inner concave conical surface enclosure bulkhead, the adjusting bolt is inserted into the through hole in a penetrating mode, and the tail end of the adjusting bolt is arranged in the threaded hole in a screwed mode. The mounting rod can be mounted on a vehicle body; When the pitching angle of the pedal rod needs to be adjusted, the adjusting bolt is unscrewed, the pedal rod is rotated to a proper angle, then the adjusting bolt is screwed down, it is ensured that the conical protrusion on the mounting rod tightly abuts against the inwards-concave conical face of the pedal rod, and at the moment, the pedal rod cannot easily rotate; therefore, adjustment of the pitching angle of the pedal rod is completed, a driver can adjust the pitching angle of the pedal at will according to experience habits of the driver, and personalized adjustment of the driver is achieved.