Laser irradiation apparatus such as a recording device 14 for irradiating a laser beam to the recording object includes a laser array unit 14a, and a fiber array unit 14b and the optical unit 43. Laser array unit 14a includes a laser light emitting element 41 such as a plurality of semiconductor lasers arranged in an array. Fiber array unit 14b, a plurality of optical fibers 42 provided corresponding to the laser light emitting element 41, the vicinity of the laser emitting section of the optical fiber 42, the array head 44 to hold the array in the vertical direction (Z axis direction) It is equipped with a.