The authors proposes edible actuators and edible mechanical components which are made of the gelatin in previous researches. In this paper, the edible bellows which is made of gelatin and has long stroke compared with the one chamber actuator. It can be used as actuator by applying the air and it can also be used as a force sensor with high sensibility by taking out the air. Edible bellows is developed and its basic motion as actuator is confirmed by the experiment.
