An electronic device of the present invention includes: a first case and a second case that are oppositely provided in a slidable manner; and a flexible flat cable that is provided in a state of having a U-shaped bend portion in a gap between the cases, and connects circuit substrates respectively housed in the cases, on a facing surface of at least one case among facing surfaces of the cases, a step that pushes up the flexible flat cable from the facing surface of the one case to the gap side is provided, and the step is provided in a region of non-contact with the U-shaped bend portion which is displaced in a sliding direction of the cases during sliding operation of the cases.