The Classic of Mountains and Seas records the clear autumn and the nine-tailed fox, which is called "Kyubi no Youko" for short and "Kyubi no Youko Chicken" for short. It first appeared in the pre-Qin period and spread to the Han Dynasty as an auspicious beast, symbolizing the prosperity of kings and being mentioned in many ancient books. Some scholars believe that the images of "Qingqiu Country" and "Nine-tailed Fox" in The Classic of Mountains and Seas come from the "tail lodge in the oriental green dragon" because "there are nine planets at the tail; Yu met the legends of "Tu Shan barren woman" and "nine-tailed white fox" when he was in charge of water control, which is a tortuous inheritance of Yu's thoughts on water control and "Ji Wei". "Shan Hai Jing Overseas East longitude" records: "Qingqiu country is in the north, and its fox has four feet. One is in Chaoyang North. Qingqiu Kingdom is in the north, and the fox here has four legs in Kyubi no Youko, which is in Chaoyang North. Shan Hai Jing Ye Dong Jing records: "There are green hills, foxes and Kyubi no Youko. There is a castle peak country and a Kyubi no Youko fox. " "Shan Hai Jing Nan Shan Jing" records: "East 300 Li, named Qingqiu Mountain. Its yang is rich in jade, and its yin is green. There is a wild animal that looks like a fox and Kyubi no Youko and sounds like a baby. It can eat people, but the people who eat them are not cunning. Guo Pu's annotation "Shan Hai Jing Ye Dong Jing" holds that "there is a green mountain in a country, and there is a fox and Kyubi no Youko cloud:" Peace means prosperity. ; "Taiping Universe" and "Yuanhe County Records" record: "The county in the old legend was originally located in the south of Pushui, and was often pierced by the magic fox, so it moved to the north of Pushui, so it was called Li Hu. In the past, it was said that when the county seat was located in the south of Pushui, magic foxes often made holes here, so they moved to the north of Pushui, so the fox left.