Lijiang is a gathering place for the Naxi people. The Naxi people lived here for generations, so the Naxi seals can be found in various places in the ancient city, such as the Naxi scriptures on the walls. The Naxi script, which belongs to the pictograph, expresses the content that the text needs to express in terms of shape, and is more easily understood and accepted by people. Dayan Ancient City is located in the middle of Lijiang Dam in Lijiang City, Yunnan Province, north of Xiangshan Mountain, Jinhong Mountain and West Pillow Lion Mountain. China's 5A-level tourist scenic spot, a national historical and cultural city, is also one of the world's cultural heritage. Sifang Street in the heart of the ancient city was already a commercial hub in northwestern Yunnan during the Ming and Qing Dynasties. It is the distribution center on the ancient tea-horse road.