The Dai ethnic group is one of the main indigenous peoples of Ruili and is the largest ethnic minority in Ruili City. They are mainly distributed along the banks of the Ruili River in the three townships of Jiexian, Nongdao, and Mengmao. Most of the Dai people in Ruili are native, with some having migrated from other areas. Due to regional differences, the Dai in this area are generally divided into three linguistic branches: Daile, Daimo, and Daide. The Dai in the Ruili area have a long history and a developed culture. Precious Dai classics such as the "Baiye Sutra," "Hei Menggu Meng," and "E Bing and Sang Luo" have been discovered. There are also the famous Dai calendar, Dai opera, and Dai medicine. The Dai people of Ruili, young and old, are good at singing and dancing. Famous dances passed down to this day include the "Peacock Dance," "Elephant Foot Drum Dance," and the large-scale folk group dance "Gayang," which can be considered masterpieces. Ruili has produced many talents in the Peacock Dance, with performers such as Mao Xiang, Yao Xiang, and Wang La being honored as ethnic folk dancers for their performances of the Peacock Dance.