PROBLEM TO BE SOLVED: To provide an attachment jig for attaching an article, a painting, a black/white board, or a TV set, another electric product and the like to a lattice-shaped structure used as a partition wall with vertical bars combined with horizontal bars vertically and horizontally.SOLUTION: The attachment jig comprises a piece 3 provided with a leg 2 to be inserted and fitted in an opening 9c defined by vertical bars and horizontal bars of a lattice-shaped structure 9, and a bolt 6 attached to the piece 3. The piece 3 is fixed into a predetermined opening 9c of the lattice-shaped structure 9 by forced fitting, and then, the bolt 6 attached to the piece 3 and protruding from the opening 9c allows an article, a painting, a black/white board, an electric product or the like to be engaged thereon.
