A vehicle headlamp apparatus comprising: a lamp unit operable to form an auxiliary light distribution pattern (Hi1, Hi2, Hi3, Hi4) which covers a pedestrian dazzling region where a pedestrian may be dazzled when driving on a road; and a controller for controlling a light irradiation of the lamp unit in accordance with a vehicle (400, 410, 420) existing ahead of a vehicle, on which the vehicle headlamp apparatus is mounted, wherein the controller is configured to reduce an illuminance of the auxiliary light distribution pattern (Hi1, Hi2, Hi3, Hi4) when a speed of the vehicle, on which the vehicle headlamp apparatus is mounted, is in a range in which the vehicle can be assumed to be travelling in an urban area, characterized in that the lamp unit comprises a first lamp unit operable to form a first partial light distribution pattern (Hi2L) and to horizontally move the first partial light distribution pattern (Hi2L), and a second lamp unit operable to form a second partial light distribution pattern (Hi3R) and to horizontally move the second partial light distribution pattern (Hi3R), the first partial light distribution pattern (Hi2L) covering a part of the region above the horizontal line, and the second partial light distribution pattern (Hi3R) covering another part of the region above the horizontal line, and the controller is configured to control the first lamp unit and the second lamp unit to form the auxiliary light distribution pattern by combining the first partial light distribution pattern (Hi2L) and the second partial light distribution pattern (Hi3R) such that the auxiliary light distribution pattern has a light blocked region that corresponds to a position of the vehicle (400, 410, 420) ahead, to move at least one of the first partial light distribution pattern (Hi2L) and the second partial light distribution pattern (Hi3R) such that the light blocked region is changed so as to follow the position of the vehicle (400, 410, 420) ahead, and the controller is configured to switch only the light distribution pattern from the moved first partial light distribution pattern (Hi2L) to a corresponding low beam light distribution pattern when the moved first partial light distribution pattern (Hi2L) reaches an end of its movable horizontal range; and to switch only the light distribution pattern from the moved second partial light distribution pattern (Hi3R) to a corresponding low beam light distribution pattern (Lo1R) when the moved second partial light distribution pattern (Hi3R) reaches an end of its movable horizontal range. a lamp unit operable to form an auxiliary light distribution pattern (Hi1, Hi2, Hi3, Hi4) which covers a pedestrian dazzling region where a pedestrian may be dazzled when driving on a road; and a controller for controlling a light irradiation of the lamp unit in accordance with a vehicle (400, 410, 420) existing ahead of a vehicle, on which the vehicle headlamp apparatus is mounted, wherein the controller is configured to reduce an illuminance of the auxiliary light distribution pattern (Hi1, Hi2, Hi3, Hi4) when a speed of the vehicle, on which the vehicle headlamp apparatus is mounted, is in a range in which the vehicle can be assumed to be travelling in an urban area, characterized in that the lamp unit comprises a first lamp unit operable to form a first partial light distribution pattern (Hi2L) and to horizontally move the first partial light distribution pattern (Hi2L), and a second lamp unit operable to form a second partial light distribution pattern (Hi3R) and to horizontally move the second partial light distribution pattern (Hi3R), the first partial light distribution pattern (Hi2L) covering a part of the region above the horizontal line, and the second partial light distribution pattern (Hi3R) covering another part of the region above the horizontal line, and the controller is configured to control the first lamp unit and the second lamp unit to form the auxiliary light distribution pattern by combining the first partial light distribution pattern (Hi2L) and the second partial light distribution pattern (Hi3R) such that the auxiliary light distribution pattern has a light blocked region that corresponds to a position of the vehicle (400, 410, 420) ahead, to move at least one of the first partial light distribution pattern (Hi2L) and the second partial light distribution pattern (Hi3R) such that the light blocked region is changed so as to follow the position of the vehicle (400, 410, 420) ahead, and the controller is configured to switch only the light distribution pattern from the moved first partial light distribution pattern (Hi2L) to a corresponding low beam light distribution pattern when the moved first partial light distribution pattern (Hi2L) reaches an end of its movable horizontal range; and to switch only the light distribution pattern from the moved second partial light distribution pattern (Hi3R) to a corresponding low beam light distribution pattern (Lo1R) when the moved second partial light distribution pattern (Hi3R) reaches an end of its movable horizontal range.