The utility model mainly provides a shaving board structure that slidable was dismantled, including last shrouding and lower shrouding, go up vacuole formation structure between shrouding and the lower shrouding, just be fixed with the fixed strip on the inner wall of last shrouding, go up the shrouding all around the inner wall with be equipped with first draw -in groove and second draw -in groove on the fixed strip respectively, the symmetry is equipped with two draw runners on the shrouding down, the draw runner both sides are equipped with the buckle respectively, two the draw runner symmetry sets up the both sides of fixed strip, just the buckle with first draw -in groove and second draw -in groove correspond one by one. The utility model has the advantages of reasonable design, simple to operate, the demountable installation purpose of shrouding about not only can satisfying, simultaneously, through going up the shrouding and down designing into the cavity structure between the shrouding, can effectively improve the syllable -dividings effect of shaving board, moreover when the shaving board takes place to burn, the phenomenon that can realize slowing down combustibility rate.