Harvester cutter

The utility model discloses a harvester cutter which comprises a cutter rest, a cutter bar assembly, an edge protector, an edge pressing device, a left conveying rack, a right conveying rack and a connecting seat, the cutter bar assembly is installed on the cutter rest, the cutter bar assembly comprises a plurality of movable cutter blades and a cutter bar, and the movable cutter blades are composed of A-type cutter blades and B-type cutter blades. An A-shaped lightening hole is formed in the middle of the A-shaped blade, a B-shaped upper lightening hole and a B-shaped lower lightening hole are formed in the middle of the B-shaped blade, the positions of the B-shaped upper lightening hole and the B-shaped lower lightening hole are staggered from the position of a pressing edge of the edgepressing device, a plurality of A-shaped blades are arranged on the cutter bar, and a B-shaped blade is arranged near the edge pressing device; the left conveying rack and the right conveying rack areboth connected with the c