The invention relates to the field of
laser application, and in particular relates to a Gauss
laser beam shaping method and a Gauss
laser beam shaping device and a precise laser micropore
processing device. A beam expanding device, a shaping device, an initial focusing lens, a hole diaphragm, a collimation device, a
light beam deflection device and a focusing lens are sequentially arranged along the light path, wherein the Gauss laser beam is shaped as a flat laser beam by the shaping device after being expanded through the beam expanding device, the flat laser beam is collimated by the collimation device after being intercepted by the hole diaphragm and initially focused by the initial focusing lens, a transmission direction of the flat laser beam is changed through the
light beam deflection device, and then the flat laser beam is focused through the focusing lens to obtain the laser beam for micropore
processing. The Gauss laser beam is output after being shaped as the flat laser beam, the
utilization rate and the
processing efficiency of the laser are improved, and the
energy loss is reduced; meanwhile, when the flat laser beam obtained through the focusing of the focusing lens is used for micropore processing, the hole margin of each of a through hole and a
blind hole is smooth, the taper of the hole is reduced, the bottom damage of the
blind hole is avoided, and the
blind hole with a flat bottom is obtained.