Foldable dozing-preventing desk

The invention relates to a foldable dozing-preventing desk which prevents a student from sleeping in a class and improves the classroom efficiency. The foldable dozing-preventing desk comprises a desk top, a pressure bearing and converting mechanism, an overturning fixing supporting plate, a rotatable left supporting leg, a rotatable right supporting leg and a U-shaped supporting leg. A similar-steel-ball structure is arranged between the desk top and a support through simple manufacturing to serve as a bolt, pressure sensing is sensitive, and the pressure limit can be adjusted by rotating the bolt; when the pressure reaches the limit, pins break away from clamping grooves, and the desk top is downwards overturned to enable the students to be incapable of dozing. 90-degree overturning of a bookshelf is achieved by pulling an overturned supporting strip open. A fixing pin and a clamping groove device are arranged at each connector of the rotation positions of the rotatable supporting legs; in the rotation process, better positioning of the clamping grooves and the pins is achieved through springs, so that the desk leg folding fixation is strengthened. After the foldable dozing-preventing desk is folded, the size is greatly reduced, and convenience is brought to transportation. When the foldable dozing-preventing desk is not used, space is saved. The foldable dozing-preventing desk can serve as a drawing board through 45-degree overturning.