Abstract: The device comprises a toe covering portion mounted on a binding table fixed to a ski board and permitting a toe portion of a ski shoe to be inserted therein, an engaging portion always energized toward the bottom of the ski shoe and projecting from the upper surface of the ski board within the toe covering portion, a manipulating portion projecting from an upper surface of the ski board at outside of the toe covering portion and adapted to push down the engaging portion resisting the energizing force, a projection projecting from the upper surface of the ski board, an engaging recess formed in the bottom of the ski shoe for engaging the engaging portion with the ski shoe and a groove formed in the bottom of the ski shoe for engaging the projection with the ski shoe.