A user interface apparatus for a vehicle includes: an interface unit; a display unit configured to project an augmented reality (AR) graphic object onto a screen; at least one processor; and a computer-readable medium coupled to the at least one processor having stored thereon instructions which, when executed by the at least one processor, causes the at least one processor to perform operations including: acquiring, through the interface unit, front view image information and vehicle motion information; based on the front view image information, generating the AR graphic object; and based on the vehicle motion information, warping the AR graphic object.