Pigsty feed and drinking water automatic supply system

The utility model discloses an automatic feed and drinking water supply system for a pig house. The automatic feed and drinking water supply system comprises a control unit, a feed supply subsystem, adrinking water supply subsystem and a trough system, wherein a feed container and a discharge pipe of the feed supply subsystem, feed valves are respectively arranged between the feed container and the main feed pipe, and a feed weight sensor for detecting the amount of feed in the feed container is arranged in the feed container; the drinking water supply subsystem comprises drinking water nozzles corresponding to each pig house and a main drinking water pipe connected with each drinking water nozzle, each drinking water nozzle comprises a pressing valve and a water outlet, and the water outlets are used for spraying drinking water when the pigs are engaged with the pressing valves; the trough system comprises a plurality of trough units corresponding to a single pig house, and the trough unit of each pig house