The present disclosure relates to a vehicle control device for a vehicle having a voice input unit, an audio output unit, and a display. The vehicle control device may include a communication unit configured to communicate with at least one of the voice input unit, the audio output unit, and the display, and a processor configured to control the communication unit to output a message for inducing an utterance of a passenger aboard the vehicle in at least one of an auditory manner and a visual manner when a preset event occurs, and identify the passenger based on receiving a response of the passenger to the message through the voice input unit, and perform a different function based on the identified passenger.