The site of the Nine-Cheng Palace is located in the county seat of Liyou County, Shaanxi Province, and is a resort for the two generations of the Sui and Tang Dynasty. When it was first built, it was the Renshou Palace of the Sui Dynasty. Emperor Xu Wendi has been here six times to avoid the office. Tang Zhenguan for five years, Tang Taizong expanded and repaired, changed its name to the Nine-Cheng Palace, and then destroyed it. Now the original site is rebuilt, and it is a tourist attraction for tourists to visit.