A laser processing device, which is a device for processing a processing object by condensing and irradiating laser light to the processing object, comprising: a laser light source for outputting laser light; a phase modulating spatial light modulator for being input with a laser light output from the laser light source, presenting a hologram for modulating the phase of the laser light in each of a plurality of two-dimensionally arrayed pixels, and outputting the phase-modulated laser light; a condensing optical system provided at a subsequent stage of the spatial light modulator; and a control section for causing the spatial light modulator to present a hologram for condensing the phase-modulated laser light output from the spatial light modulator to a plurality of condensing positions (h 1 -h 12, p 1 -p 15, k 1 -k 16) by the condensing optical system, characterized by the control section causing: the spatial light modulator to sequentially present a plurality of holograms; and when having made the phase-modulated laser light output from the spatial light modulator where each of the holograms has been presented be input to the condensing optical system, at a condensing position existing (h 1 -h 12, p 1 -p 11, k 1 -k 10), in a processing region of the processing object out of the condensing positions, a part of the phase-modulated laser light to be condensed as a laser light having a constant energy not less than a predetermined threshold, while at a condensing position (p 12 -p 15, k 11 -k 16) existing in a region other than the processing region out of the condensing positions, a remaining part of the phase-modulated laser light to be condensed as a plurality of laser lights having an energy less than the threshold, thereby processing the processing object. a laser light source for outputting laser light; a phase modulating spatial light modulator for being input with a laser light output from the laser light source, presenting a hologram for modulating the phase of the laser light in each of a plurality of two-dimensionally arrayed pixels, and outputting the phase-modulated laser light; a condensing optical system provided at a subsequent stage of the spatial light modulator; and a control section for causing the spatial light modulator to present a hologram for condensing the phase-modulated laser light output from the spatial light modulator to a plurality of condensing positions (h 1 -h 12, p 1 -p 15, k 1 -k 16) by the condensing optical system, the spatial light modulator to sequentially present a plurality of holograms; and when having made the phase-modulated laser light output from the spatial light modulator where each of the holograms has been presented be input to the condensing optical system, at a condensing position existing (h 1 -h 12, p 1 -p 11, k 1 -k 10), in a processing region of the processing object out of the condensing positions, a part of the phase-modulated laser light to be condensed as a laser light having a constant energy not less than a predetermined threshold, while at a condensing position (p 12 -p 15, k 11 -k 16) existing in a region other than the processing region out of the condensing positions, a remaining part of the phase-modulated laser light to be condensed as a plurality of laser lights having an energy less than the threshold, thereby processing the processing object.