Cutting machine applied to wood cutting

The utility model relates to the technical field of cutting machines, in particular to a cutting machine applied to wood cutting, a saw blade is provided with a protective cover, a cutting machine body is provided with a positioning device, an extension frame comprises a second support, the second support is fixedly connected with a supporting plate, and one end, far away from the second support, of the supporting plate is detachably connected with the cutting machine body; the collecting device comprises a box body and a first baffle detachably connected to the upper end of the wood chip discharging port, the other end of the first baffle is placed at the upper end of the box body, a protective cover is additionally arranged on the saw blade, the use safety is improved, a first support and a second support are detachably connected to the cutting machine body, the platform area on the cutting machine body is guaranteed, and the cutting efficiency is improved. The wood cutting width can be conveniently adjuste