According to an embodiment, a laser processing apparatus, that perform laser processing on an object with laser light, includes a plurality of optical heads. The optical heads each includes a laser head unit that emits a plurality of laser light beams in an arranged manner in a predetermined direction, and an optical system that focuses the emitted plurality of laser light beams on the object conveyed relatively with respect to the laser head unit in a conveying direction intersecting the predetermined direction. The optical heads each includes a first optical head group and a second optical head group in which the optical heads are adjacent to each other in the predetermined direction. The first optical head group and the second optical head group are adjacent to each other in the conveying direction and arranged while being shifted from each other by a predetermined length in the predetermined direction.