A massaging device (1) possesses a trunk supporting part (21), a trunk acting part (33), an operating part (70) and a control part (61). The trunk supporting part (21) supports the trunk acting part (33), and the trunk acting part (33) possesses a massaging arm (34) and a massaging ball (35). The massaging arm (34) is configured at the trunk supporting part (21), and moves relative to the trunk supporting part (21). The massaging ball (35) is combined with the massaging arm (34), and changes based on the movement of the massaging arm (34) and relative to the protrusion position, namely the position in the protruding direction of the trunk supporting part (21). The control part (61) enables the trunk acting part (33) to form the retraction action from the protrusion position to the minimum protrusion position, and changes the protrusion position periodically by the retraction action of the trunk acting part (33) when the massaging ball (35) is at the maximum protrusion position, and the trunk acting part (33) is driven based on an action intensity changing signal of the operating part (70).
