Core-pulling type lifting desk and chair

The utility model discloses a core-pulling type lifting desk and chair, which comprises a desk and a chair, the desk comprises a desktop part and two desk leg parts, the two desk leg parts are of an L-shaped structure, the vertical section of each desk leg part is provided with a lifting channel, the two sides of the lower end of the desktop part are respectively provided with a lifting insertion rod, and the lifting insertion rods are inserted into the lifting channels. The lifting insertion rods are inserted into the lifting channels of the table leg parts in a sliding mode, a plurality of vertically-arranged adjusting holes are formed in the side walls of the lifting channels, a row of fixing holes are formed in the side faces, corresponding to the adjusting holes, of the lifting insertion rods, and first locking bolts penetrating through the adjusting holes and the fixing holes are connected between the lifting insertion rods and the lifting channels; the tablet chair comprises a chair back and two chair