The invention provides a cutting device. The cutting device comprises an operation table, a sawing disc, a fixed baffle and a sawdust collection box, wherein the fixed baffle is arranged on one side above the operation table, one side of the baffle is flush with one side of the operation table, the sawing disc is arranged in the middle above the operation table and is perpendicular to the operation table, and the sawdust collection box is arranged on the side, perpendicular to the fixed baffle, of the operation table. The cutting device is high in cutting precision, facilitates collection of cut materials, avoids secondary transportation, increases the working efficiency, facilitates protection and maintenance of a working environment and improves the comfort and the safety of an operator.