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The laser cutting technique was applied to chestnut shell-cutting process. The chestnut shell-cutting machine was consisted of a vibration feeder, V-shaped belt for chestnut positioning and conveying, motor drive system, laser generator, mirrors for laser reflection and focusing, control panel etc. The experiments of chestnut shell-cutting and shell puffing using laser indicated that the shell puffing rate of chestnut cut increased with increasing of the laser power or decreased with increasing of chestnut delivery speed. When the laser power is 80W and the chestnut delivery speed is 0.12m/s (means that 3 or 4 chestnuts shell could be cut per second) the shell puffing rate of chestnut cut is above 98% and its cutting quality is the best.