A headlight control apparatus sets a forward moving vehicle as a target vehicle, acquire a target longitudinal difference between a reference lateral line in a forward image and a target vehicle lateral line which defines a position of the target vehicle in a longitudinal direction in the forward image, acquire a target lateral difference between a reference longitudinal line in the forward image and a target vehicle longitudinal line which defines a position of the target vehicle in the lateral direction in the forward image, set a target lighting angle of the at least one headlight, depending on the target longitudinal and lateral differences, and adjust the lighting angle of at least one headlight to the target lighting angle.