A card is slid and fitted to a card connector fixed in a card-fitting recessed portion provided inside a reverse surface-side housing of a portable terminal apparatus. A front portion of the card is held by card holding portions provided in a front portion, as viewed in a card sliding direction, of the card connector, and a rear portion of the card is held by an inner wall surface of a cover-cum-battery of the reverse surface-side housing. A housing-side stopper is provided on a bottom surface of the card-fitting recessed portion. The housing-side stopper is formed by a rectangular resilient piece having one end fixed to a bottom surface of the card-fitting recessed portion.