Caohe donkey meat originated in the Caohe area of xushui county in the Song Dynasty. According to "New Records of xushui county", in the Song Dynasty, Caohe was well-developed in water transportation. In 1958, when the reservoir was repaired, the wreckage of a big wooden boat was dug up on the Caohe waterway. At that time, Caohe was the only way to Beijing Guanma Avenue. In Song Dynasty, there were two hostile forces along Caohe River, Cao Gang and Yan Gang. Cao Gang transported grain and Yan Gang transported salt. The contradiction between the two sides was deep and they often met each other. Cao Gang captured the donkey carried by Yan Gang, and slaughtered cook the meat to eat it if it could not be handled. In this way, the donkey meat processing industry in Caohe River rose and the local people formed the habit of eating donkey meat. And explore a unique processing secret. Caohe donkey meat clip is famous for its local fire, unique flavor and economical benefits. Ganlong Xiajiangnan once brought donkey meat to the palace by fire, enjoying a good reputation in Beijing. In 1996, Liu Minying inherited Caohe donkey meat processing technology, registered Caohe trademark, set up xushui county Caohe donkey meat food Co., Ltd., and developed a series of vacuum-packed donkey meat products. In 27, she opened Caohe donkey meat banquet restaurant, and in 21, Baoding Caohe donkey meat banquet restaurant opened, and has developed three franchise stores.