Having a beam splitting function which can automatically control the interval between the divided laser beams presents a laser processing apparatus. The laser processing apparatus according to the present invention, the input control parameters and control commands, including control, beam spacing adjustment amount for controlling the overall operation, and the operating state of the user interface, control of the memory controller for storing data for displaying according to drive a given aperture of the laser generating unit, based beam divider in accordance with the beam divider, the beam interval adjustment amount to at least split into two laser beams emitted from a laser generating section for outputting a laser beam to adjust the spacing of the split beam and a gap adjusting unit for adjusting the interval portion in accordance with the control by focusing a plurality of laser beams divided so as to have a given distance from the beam dividing each include an optical system for irradiation to the object. Laser, split, interval