A user interface apparatus for a vehicle including an interface unit; a display; a camera configured to capture a forward view image of the vehicle and a processor configured to display a cropped area of the forward view image on the display in which an object is present in displayed cropped area, display a first augmented reality (AR) graphic object overlaid onto the object present in the displayed cropped area, change the cropped area based on driving situation information received through the interface unit, and change the first AR graphic object to a second AR object based on the driving situation information.