A laser processing apparatus for processing a multitude of portions to be processed in an area to be processed in a subject W to be processed, including a laser device, a focusing or imaging device for laser beams provided by the laser device, and an arranging device for arranging the subject W to be processed, in which the subject W to be processed and the focusing or imaging device are fixed, and the subject to be processed is processed while relatively shifting the laser beams and the focusing or imaging device so that the focusing or imaging device is irradiated from different areas in the laser beam, inside and outside the area to be processed, and that cumulative laser beam irradiation time during the processing of each of the multitude of portions to be processed is equalized.