A vehicle headlight apparatus includes a headlight and an actuator. The
actuator horizontally changes a direction of an optical axis of the
headlight. The vehicle headlight apparatus detects a rotational state of
at least one predetermined wheel. The vehicle headlight apparatus
determines whether a vehicle travels in a forward direction or a
non-forward direction based on a detection result. A swivel operation, in
which the actuator horizontally changes the direction of the optical axis
of the headlight based on a steering operation of the vehicle, is
performed when the vehicle headlight apparatus determines that the
vehicle travels in the forward direction. The swivel operation is
cancelled when the vehicle headlight apparatus determines that the
vehicle travels in the non-forward direction.