Abstract: A device for providing an interface using a projection includes: a first camera for capturing a vehicle user when an approach of the vehicle user to a vehicle is detected; a projector for projecting an interface, related to at least one vehicle control function, preset based on user identification information; a second camera for capturing an area on which the interface is projected; a memory storing one or more instructions; and a processor for executing the instructions to: acquire the user identification information of the vehicle user using the first camera, recognize a user input to the interface using the second camera, and perform a vehicle control corresponding to the interface when the user input is recognized.