A light distribution controlling apparatus of a vehicle headlamp, comprising: an adaptive driving beam controlling module configured to detect a vehicle position of a front vehicle in front of an own vehicle and to switch light distribution of the vehicle headlamp based on the detected vehicle position and base positions (LB, RB); wherein the base positions (LB, RB) are defined in a light distribution control map corresponding to an image of a front area of the own vehicle, wherein the center of the light distribution control map is consistent with a straight direction of the own vehicle and wherein a right base position is set at a predetermined distance (ΔRB) from the center in a right direction and a left base position is a at a predetermined distance (ΔRL) from the center in a left direction; an adaptive front-lighting system controlling module configured to swivel-control an irradiation direction of the vehicle headlamp depending on a change of a traveling direction of the own vehicle; characterized by an offset module configured to offset, in the light distribution control map, the detected vehicle position adopted in the ADB controlling module as an offset detected vehicle position (LEo, REo), depending on a calculated swivel angle calculated by the AFS controlling module, wherein, when the own vehicle travels a left-curved road, the AFS controlling module swivel-controls the left headlamp of the own vehicle in a left direction, the offset module offsets a left end position of the detected vehicle position in a right direction as a left end position (LEo) of the offset detected vehicle position, depending on the calculated swivel angle, and the ADB controlling module switches light distribution of the left headlamp based on a comparison result between the left end position (LEo) of the offset detected vehicle position and a left base position of the base position, wherein, when the own vehicle travels a right-curved road, the AFS controlling module swivel-controls the right headlamp of the own vehicle in a right direction, the offset module offsets a right end position of the detected vehicle positon in a left direction as a right end position (REo) of the offset detected vehicle position, depending on the calculated swivel angle, and the ADB controlling module switches light distribution of the right headlamp based on a comparison result between the right end position (REo) of the offset detected vehicle position and a right base position of the base position. an adaptive driving beam controlling module configured to detect a vehicle position of a front vehicle in front of an own vehicle and to switch light distribution of the vehicle headlamp based on the detected vehicle position and base positions (LB, RB); wherein the base positions (LB, RB) are defined in a light distribution control map corresponding to an image of a front area of the own vehicle, wherein the center of the light distribution control map is consistent with a straight direction of the own vehicle and wherein a right base position is set at a predetermined distance (ΔRB) from the center in a right direction and a left base position is a at a predetermined distance (ΔRL) from the center in a left direction; an adaptive front-lighting system controlling module configured to swivel-control an irradiation direction of the vehicle headlamp depending on a change of a traveling direction of the own vehicle; characterized by an offset module configured to offset, in the light distribution control map, the detected vehicle position adopted in the ADB controlling module as an offset detected vehicle position (LEo, REo), depending on a calculated swivel angle calculated by the AFS controlling module, wherein, when the own vehicle travels a left-curved road, the AFS controlling module swivel-controls the left headlamp of the own vehicle in a left direction, the offset module offsets a left end position of the detected vehicle position in a right direction as a left end position (LEo) of the offset detected vehicle position, depending on the calculated swivel angle, and the ADB controlling module switches light distribution of the left headlamp based on a comparison result between the left end position (LEo) of the offset detected vehicle position and a left base position of the base position, wherein, when the own vehicle travels a right-curved road, the AFS controlling module swivel-controls the right headlamp of the own vehicle in a right direction, the offset module offsets a right end position of the detected vehicle positon in a left direction as a right end position (REo) of the offset detected vehicle position, depending on the calculated swivel angle, and the ADB controlling module switches light distribution of the right headlamp based on a comparison result between the right end position (REo) of the offset detected vehicle position and a right base position of the base position.