Large-scale mutton sheep variable accurate feeding device and method

The invention belongs to the technical field of livestock breeding, and particularly relates to a large-scale mutton sheep variable accurate feeding device which comprises a U-shaped communicating pipe, a feeding mechanism and a supplying mechanism, wherein the feeding mechanism comprises a treading part, a regulation and control part and a trough part, the treading part comprises a water tank and a pedal, the regulation and control part comprises a sleeve, a sleeve rod and a charging basket, the sleeve rod is slidably arranged in the sleeve in a sleeving mode and is slidably sealed, the charging basket is provided with a distance measuring assembly, the trough part comprises a feed trough, and the supplying mechanism is provided with a controller. The invention further provides a feeding method of the large-scale mutton sheep variable accurate feeding device. According to the invention, the problems that an existing feeding device usually needs to manually adjust and control the feed amount of feeding and ca