The present invention provides a tractor which includes a body frame configured such that a front portion thereof adjacent to a front wheel axle is at a raised position to prevent interference with front wheels, and a medial portion thereof is depressed so that an engine can be located in the medial portion. Thereby, the front wheels can be turned to maximum angles without being impeded by the front wheel axle, and a driver cab provided with a driver seat can be located above an area where the engine is disposed.