NOVELTY - Fermentation of waste in livestock farm includes preprocessing waste and wastewater by precipitating; introducing the waste into a waste pond and stirring into slurry in the waste pond; spreading a layer of plant padding in fermenting section; adding beneficial microorganism into the waste pond; stirring and uniformly mixing with the waste slurry; delivering the waste slurry containing bacteria into the fermenting section; uniformly spreading the waste slurry on the surface of the padding; uniformly mixing; and fermenting.    USE - Fermentation of waste in livestock farm (claimed).    ADVANTAGE - The method realizes zero discharge of culturing waste.    DETAILED DESCRIPTION - Fermentation of waste in livestock farm comprises:    (A) preprocessing waste and wastewater by precipitating to prevent the large waste or fiber impurity from circulating in a discharge system; introducing the waste into a waste pond through a dynamoelectric pumping pipe; and stirring into slurry in the waste pond;    (B) spreading a layer of plant padding in fermenting section;    (C) adding beneficial microorganism into the waste pond; and stirring and uniformly mixing with the waste slurry;    (D) delivering the waste slurry containing bacteria into the fermenting section through a waste delivering system; uniformly spreading the waste slurry on the surface of the padding; and uniformly mixing until the water content reaches 40-65%;    (E) maintaining the center temperature of the padding at not less than 50 degrees C while fermenting for 24-96 hours;    (F) uniformly spraying the waste or waste slurry on the padding, where sinking depth of the sprayed waste slurry is not greater than 30-60 cm; turning the padding with thickness of 10-40 cm; preventing the padding from being hardened; and ensuring uniform mixing between waste and padding; and    (G) fermenting for 3-40 days to completely decompose the waste and carry out the next spraying.    An INDEPENDENT CLAIM is included for fermenting device of waste in livestock farm comprising waste collecting pond, transit pond, hardening and tempering pond, and fermenting section. The lower side of an inner cavity of the waste collecting pond is provided with a through hole circulating with the transit pond. The bottom end of the through hole is higher than the bottom part of the waste collecting pond. The transit pond is provided with an output pipe for pumping towards the hardening and tempering pond. The hardening and tempering pond is inlaid with a dynamoelectric stirring blade and a dynamoelectric pumping pipeline. The wall of the fermenting section is provided with a waste delivering pipe connected with the dynamoelectric pumping pipeline. The output end of the waste delivering pipe is provided with a control valve and a dynamoelectric button installed near the output end. The dynamoelectric button is a control button for controlling the work circuit of the dynamoelectric pumping pipeline. The inner part of the fermenting section is spread with an organic padding for fermenting the waste.