Lifting desk with adjustable use height

The utility model discloses a lifting desk with adjustable use height. One end of a guide rod of the lifting desk is vertically fixed on a desk top plate, the other end of the guide rod is inserted in foot frames, more than two positioning holes are arranged on the guide rod in the direction vertical to the desk top plate, each foot frame comprises a desk foot, two support rods and a positioning baffle sheet, the two support rods are vertically fixed on the desk foot, the distance between the two support rods is the width of the guide rod, a slide passage is formed between the support rods, the guide rod is movably inserted in the slide passage, one side of the slide passage is provided with the positioning baffle sheet, both ends of the positioning baffle sheet are respectively and fixedly connected with the two support rods, and a positioning hole is formed at a position on the position baffle sheet corresponding to the slide passage. The lifting desk has the advantages that the height can be flexibly regul