To provide a character input device allowing a user to smoothly carry out a “character input operation which is carried out by initially selecting any character group from a plurality of character groups each corresponding to a plurality of characters, then selecting any character from among those corresponding to that group, and determining the selected character as an input character”. The display control unit (140) causes display means to display a character input screen which contains character group correspondence images corresponding to the plurality of character groups, and an input candidate presentation image for presenting characters corresponding to the focused character group, in which the character group correspondence image corresponding to the focus character group is distinctively displayed, and the character specified as a currently selected input candidate among the characters set corresponding to the focused character group is distinctively displayed in the input candidate presentation image. The input character determination unit (138) determines the character specified as the currently selected input candidate as the input character according to an input character determination operation.