It is an object to provide a small and inexpensive laser light source device capable of efficiently focusing rays of laser light from a plurality of laser light sources so as to increase output, and to provide an inexpensive and small video display device. The plurality of laser light source units (61, 62, 63, 64) are arranged in such manner that the plurality of laser light source units adjacent to each other adjoin each other in series. The laser light source device (1) further includes a second reflection mirror (81, 82) reflecting, in a third direction, a ray of laser light reflected in a second direction. The second reflection mirror (81, 82) is held by a mirror holder belonging to one laser light source unit among the plurality of laser light source units (61, 62, 63, 64).