Gongmian is a famous traditional Han product in Gaocheng, Hebei Province and belongs to Gongmian. This noodle originated in the late Eastern Han Dynasty. It uses wheat flour as raw material, coupled with refined salt, refined oil, starch, etc., without any additives. It is made using secret manual techniques, including wire rods, stalks, strips, drawing, drying in the shade, etc. Made by one process. The noodles are rich in nutrients and delicious. The noodles are thin and hollow, shiny and white in color. They are not bad at fire resistance and will not rot when reheated. They are easy to eat and can be used as staple food or as a side dish. They can be eaten cold or in hot noodle soup. . It is a common nourishing food for the elderly, patients, pregnant women and babies. It is also a good gift for relatives and friends. Gaocheng palace noodle production technology has a processing history of more than 2,000 years. After continuous development and improvement, a complete processing technology and unique dietary culture have been formed in Gaocheng. Since it was only supplied to the palace at first, it was also called "Gaocheng Palace Noodles", "Gong Noodles" and "Imperial Noodles".