Head lamp for vehicle and method of controlling the same

Disclosed are a head lamp for a vehicle and a method of controlling the same. The head lamp for a vehicle according to an exemplary embodiment of the present invention includes: a first lamp module (100); and a second lamp module (200) disposed at a front side of the first lamp module, in which a mode of the second lamp module is set to one of a first mode in which a portion of the second lamp module is overlapped with the first lamp module on a light proceeding path, and a second mode in which the second lamp module is not overlapped with the first lamp module.