To allow an acupressure backrest to rigidly support a user corresponding to the shaped of the back of an individual user and to additionally function as the rigid supporting means of accessories such as an acupressure device, a cushion to rightly hold these accessories at the prescribed position of a conventional backrest by providing the acupressure backrest to be freely attachable and detachable to the conventional seat of a vehicle, or the like, by extremely simple constitution.

By folding a long-length flat plate at its lower part to form its substantially L-form vertical cross section, a supporting leg 2 and an anchor leg 3 shorter than it are formed. At the time of using, the leg 3 is pushed into a gap between the bottom face of the seat of the vehicle and the lower tip part of the backrest to be inserted and held, thereby the leg 2 is held along the conventional backrest to function as the acupressure backrest.