The present invention relates to an apparatus for adjusting a height of control boxes, which enables a driver to drive with an optimal posture according to his body condition by adjusting a height of the control boxes having operation levers. The apparatus for adjusting a height of control boxes according to the present invention distributes a weight of the control boxes to the upper and lower arms not to be directly transferred to the adjustment shaft, so a large force is not required for the rotations of the adjustment shaft, and, by using the same rotation shaft, has an advantage of enabling the left and right control boxes to simultaneously and constantly have the same height. |