The invention discloses a precise feeding system for a nursing sow. The precise feeding system comprises a client side, a server and a feeding device, wherein the client side is used for receiving feeding information which comprises feeding times, feeding time and feeding amount, and is also used for sending the feeding information to the server; the server is used for receiving and storing the feeding information and controlling the feeding device to feed according to the feeding information. According to the precise feeding system for the nursing sow provided by the invention, feed of predetermined volume can be released according to preset time points, the feed needs of the nursing sow can be met, and the feeding accurate level and the feeding efficiency can be improved, so that the nutritional status of the nursing sow is improved, the weaning weight and the survival rate of weaned piglets are improved, and the uniformity of the piglets is ensured to reach an expected standard.