Abstract: Disclosed herein is a polite-sounding vehicle horn apparatus. The polite-sounding vehicle horn apparatus includes: a main horn sound generator provided in a vehicle, and configured to generate main horn sounds; a subsidiary horn sound generator provided in the vehicle, and configured to generate subsidiary horn sounds lower than the main horn sounds; a main horn button provided on a steering wheel of the vehicle; a subsidiary horn button provided on the steering wheel of the vehicle; a camera sensor configured to detect a shape of a human in front of the vehicle; and an electronic control unit (ECU) configured to generate a main horn sound via the main horn sound generator when the main horn button is pushed, and to generate a subsidiary horn sound lower than the main horn sound via the subsidiary horn sound generator when the subsidiary horn button is pushed.