To provide a cheek pushing-up device that can push up the cheek without using either means in which the cheek is pushed up by putting the hand thereto or in which an adhesive tape or the like is stuck to the skin to retain the pushed-up cheek position, and that can also adjust the intensity of pushing up the cheek.

An ear hook and a cheek patch are connected to each other with a part for pushing up the cheek patch, and this connected combination is made in a pair for both ears. In addition, a strap to be applied under the chin is attached to the cheek patches. The strap is divided into two arcuate parts so as to be held by the upper and the lower part of the jaw. A stopper is attached to the upper arcuate part of the strap, which makes adjustment possible in tightening and relaxing the strap with the stopper. By this adjustment, the intensity of pushing up the cheek can be made increased or decreased.