A method of displaying parking assist information is used in a parking assist apparatus comprising a display and a control device. The control device specifies a parking space on the basis of a parking condition that is preliminarily defined, and displays the specified parking space in a predetermined display region defined on a display surface of the display. When the area of a region that is occupied by the parking space and displayed in the display region is less than a predetermined value, the control device displays a specific mark on the display. The mark indicates that the parking space that is not displayed in the display region exists.