A vehicle headlight device includes a variable light distribution mechanism that is able to change an illuminating area of light emitted ahead of a vehicle equipped with the vehicle headlight device from at least one light source, and is able to illuminate part of the illuminating area at a higher intensity than other parts, a direct field of vision estimator that estimates a direct field of vision on which a vehicle operator is assumed to keep his/her eyes within an area ahead of the vehicle; and a light distribution controller that sets the illuminating area so as to contain the direct field of vision estimated by the direct field of vision estimator, and controls the variable light distribution mechanism to illuminate an area corresponding to the direct field of vision at a higher intensity than a periphery of the area.