The utility model provides a self-dismounted cover plate structure, which can be conveniently dismounted without auxiliary tools and the addition of an auxiliary structure. The self-dismounted cover plate structure comprises a cover plate and a plurality of dismounting bolts, the cover plate is provided with a plurality of through holes, and dismounting threads are tapped in the through holes; the threads of the dismounting bolts are matched with the dismounting threads. In the case of difficult dismounting, connecting bolts are dismounted, the dismounting bolts are screwed into the through holes by means of the dismounting threads to push a box type component on which the cover plate is mounted, and thereby the cover plate is dismounted. The self-dismounted cover plate structure is convenient to use, and man-hours can be saved; moreover, auxiliary tools, as well as the addition of an auxiliary structure, are not needed, so the manufacturing cost is saved; the cover plate and the box type component cannot be damaged as well, and the self-dismounted cover plate structure is safer and more reliable.