Matched with 12-22 horse tractor, this machine uses biased crank connected bar structure to drive blades to work. It is suitable to be used to reap natural forage pasture, forage plant, reed, and grass feed etc. Moreover it is applicable to work in level grass land for agricultural, forest and pasturing area, and in different condition grass land in the sloping field and hills area. This machine features with simple structure, easy operation, lower and trim cutting stubble, reliable operation and so on. Tractor drives stick bite, three points hanging machine controls its lift. There are two lifting gears: oil cylinder and lifting scaffold. There are two types of power output: left power output and back power output matched with four-wheel tractor and be operated by the driver only. This machine features with simple structure, easy operation, lower and trim cutting stubble, reliable operation and so on.