The present invention provides a device for sewing a tag in the shape of a suspension loop by utilizing a binding machine for binding a pair of socks or gloves, binding a plurality of underwear or clothing into a set, or sewing a label to the clothing. A needle bar (5) with a needle (6) at the tip is disposed at one end of an arm (3) so as to be raised and laterally moved in parallel. A pair of loopers (11) and (12) are disposed on the lower side of a needle plate (10). A lower side loop spreader (13) for moving one of sewing threads (T) located between the loopers (11) and (12) to the other sewing thread side is disposed between the loopers (11) and (12) and the needle plate (10). A thread tying mechanism (14) is disposed between the lower side loop spreader (13) and the loopers (11) and(12) in such a way that the end can be inserted to tie the sewing threads. An upper side loop spreader (21) is disposed in a retractable state in the upper space of a sewn object presser plate (19) disposed on the upper surface of the needle plate (10). The upper side loop spreader (21) is structured in association with the parallel movement of the needle bar (5) in the lateral direction to horizontally oscillate.