A sliding device for an electronic apparatus includes a contact piece projecting outward in a widthwise direction from a sliding plate and a contacted part with which the contact piece is caused to come into contact when the sliding plate is caused to slide with a maximum displacement in a rear direction relative to a base plate. The contact piece includes a partially cylindrical surface and a connecting surface. The contacted part includes a contacted shape part configured to be contacted by a boundary part of the partially cylindrical surface and the connecting surface to provide the sliding plate with a rotational force to cause a front direction end portion of the sliding plate to move in the bottom direction relative to a rear direction end portion of the sliding plate, and an engaged shape part with which the partially cylindrical surface and the connecting surface are caused to engage.