A display input device includes a display portion, a touch panel portion, and a determination portion. The display portion displays a screen and an image, and displays a plurality of objects as images whose display positions are movable. The touch panel portion is provided for the display portion, and accepts a user's input, and detects a plurality of positions being touched. The determination portion determines whether two points being touched are in the vertical direction or the horizontal direction. The touch panel portion accepts an input of selecting, as selected objects, some or all of the objects displayed on the display portion. When the touch panel portion has detected that two-point touching has been performed thereon in the state where the objects are selected, the display portion aligns the display positions of the selected objects, based on the direction of the touched two points and movement of the touched points.