Abstract: Disclosed herein is an apparatus for fastening tableware. The apparatus includes a piece of tableware, a suction unit, a support column, and a locking unit. The tableware is provided with a space in which food is contained. The suction unit is closely attached to a desk or table using vacuum pressure. The support column is configured to protrude upwards from the suction unit. The locking unit is used to couple the tableware to the support column. When the support column and the tableware are coupled with each other, the difference in vertical position between the tableware and the support column is adjusted so that the tableware is not inclined.