Lida straw balers advantage covering small size, light weight, simple operation, high efficiency, an hour or more to collect straw 5 acres of land, about 800 kg of straw crops. Compact and bale, density, permeability, and a bale weight of about 20 kilograms, bale length 80 cm in diameter and 50 cm, greatly reducing the storage footprint, increase transport capacity and reduce the possibility of fire. Self-propelled straw balers are pick-up animal husbandry, paper indispensable preferred device. After the market to solve the mechanical straw recovery, improve rural environmental pollution caused by burning straw and improve the use of the quality Straw has played a huge role in promoting. The aircraft since its launch, the majority of farmers and friends love, we are friends of farmers to get rich is a good helper. It works straw balers pick up the crop mainly by playing grass roller, sprocket mechanism, rope box, lead wire rod and early warning system, hydraulic control mechanism and other components. Bundled automatically lead rope when, automatic pick straw crop, automatic balers, automatic Qiesheng, through the slots for minor modifications to change the ropes and bale density bale is taken so that the bale to leave and not messy. Bale volume after forming a small and compact, easy to transport and storage. [1] The aircraft from the body, drive mechanism, feeding mechanism, density adjustment mechanism, the pressure piston mechanism grass, bale length control mechanism and wheel travel agencies. By an electric motor (or internal combustion engine) driven by the drive mechanism and piston rod drive feed plate reciprocates; the right amount of material through the inlet, the role of feed platen, into the storage cavity of the grass, and then by the pressure piston is pushed into the grass and pressing forward. After the bale length when it reaches the separator plate inserted into the storage cavity grass, then with plantain row, until the board out of the reservoir chamber grass, you can use rope tied bale, the machine stand: The machine can be in a relatively smooth site by a car or tractor for moving short distances.