Laser beam shaping device and matching system thereof

The utility model relates to the technical field of laser cutting, in particular to a laser beam shaping device and a matching system thereof. Collimated light output by the laser enters the light beam expansion/contraction device; the first wavelength light lambda1 in the laser is expanded through the light beam expansion/contraction device, and the second wavelength light lambda2 in the laser is collected through the light beam expansion/contraction device; a first lens and a second lens are arranged in the telescopic module, and the collected second wavelength light lambda2 is emitted from the other side of the second lens in the same direction after hitting a flat light part of the second lens and then penetrates through the first lens in the same mode; and the expanded first wavelength light lambda 1 is emitted to the light condensing part of the second lens, and is refracted to enter the first lens for further light path adjustment to form a combined light spot which takes the second wavelength light la