To provide a desk for a computer with which a wide work space on the desk is obtained and an excellent work posture is taken to a display screen at the time of the work of a keyboard operation or the like by simple constitution and at a low price.

This desk is constituted of a desk main body provided with a transparent part in the prescribed range of a top plate and a withdrawing plate freely slidable in a depth direction on the back side of the transparent part, a rack part where a display device is installed at a prescribed angle to the transparent part and a wagon body provided with a mounting base for loading a device main body part and housed inside the space below the top plate of the desk main body. The rack part is provided with a pair of supporting frames obliquely formed on the leg part frame of the wagon body, a bottom surface plate attachably and detachably disposed between the supporting frames and a restraining fence disposed on the depth side of the bottom surface plate to which the back part of the display device is abutted. A freely height adjustable stopper for fixing the vertical direction of the display device installed on the bottom surface plate is separately provided and the fixing position to the bottom surface plate of the stopper is made variable stepwise in the depth direction.