Daokou Town, hua county, Anyang City is a famous "hometown of roast chicken" in China. Daokou Roast Chicken is one of the famous special foods in Henan Province, which is produced by LAY Roast Chicken Shop in Daokou Town. Its shape, color, taste and softness are known as the "four wonders", and both cold food and hot food are memorable. Daokou roast chicken was founded in the 18th year of Qing Shunzhi (166 1), with a history of more than 300 years. In the fifty-second year of Qing Qianlong (1787), Zhang Bing, the ancestor of Zhang Cunyou, a master of roast chicken, met an old friend who used to be a cook in the imperial dining hall of Qing Palace, and got the secret recipe of cooking roast chicken with "eight-ingredient soup stock" from him, which made him famous in one fell swoop. He renamed the shop "Yi Zhanghang" to commemorate "Yi Jiyou Hang". Emperor Qianlong of Qing Dynasty made a southern tour, passed by the crossing, ate "LAY" roast chicken, and woke up with a strange smell, which was praised as the best food in the world. Since then, "LAY" roast chicken has become a tribute. 1955, Zhang Heli, the sixth generation of "LAY", revealed the secret recipe of roast chicken stunt that has been ancestral for more than 300 years at the meeting of Henan Provincial Political Consultative Conference. 1956 national day, Daokou roast chicken was given a state banquet. Since then, people from all provinces, municipalities and autonomous regions in China have come to hua county to study art in an endless stream. 198 1 ~ 1987 was awarded the certificate of quality products by the Ministry of Commerce and the provincial government in previous national and provincial food appraisal meetings. Since 1978, the people's government of hua county has actively expanded the production scale of roast chicken at Daokou, built the state-run "LAY" roast chicken building and built a scientific assembly line. 1984 set up China hua county Daokou Roast Chicken Corporation to conduct unified management, scientific research and development of the roast chicken industry, build a large-scale hua county Roast Chicken Canned Food Factory, establish a roast chicken technical school and compile technical training materials; At the same time, the flexible packaging of composite aluminum foil bags was successfully studied, which opened up a new way for long-term storage and long-distance transportation of roast chicken. 1985, there were more than 430 factories and shops processing roast chicken at Daokou, with an annual output of 3,500 tons.