In Wenxian County, the southernmost part of Gansu Province, there is an ancient ethnic group with more than 5,800 people-Baima people, who are descendants of the Di nationality. Baima people have a unique language, a special skin color and a different life style from Han people. Most experts and scholars call them the only white horse in China. Baima ethnic group in Wenxian county has surnames such as Ban, Yu, Yang, Zhu and Cao, which are distributed in Maigongshan and other 18 natural villages, such as Tielou Township and Qiangqu, with deep mountains and steep terrain. Baima River passes through the high mountains, and Baima people build villages on the high mountains along the river bank and engage in agricultural production.

For more than two thousand years, the life of Baima people has been dominated by agriculture, mainly corn, oats, buckwheat, potatoes and mountain vegetables. They are all adobe houses, rich or poor. Baima people call themselves "Dababei", and their costumes are beautiful and interesting. The clothes of the rich are basically the same as those of the Han nationality, and the rest don't wear five-color Hanfu. The man wore a "sand hat" (a unique white felt hat) with golden rooster feathers and white rooster feathers, white woven underwear, a belt around his waist and leggings under his knees. Women usually wear big breasts and tight robes with simple embroidery patterns, and pleated skirts sewn with various colors of fabrics on festivals, with complex and gorgeous patterns; Head wrapped in black gauze handkerchief, agate woven, brown shirt with long sleeves and colored edges; There are silver fishbone pieces on the head and chest, a black apron on the waist, yellow, red, green and orange belts swaying slightly in the wind, earrings, bracelets, rings and other accessories jingling, shining, strange and bright.

Baima people oppose intermarriage with foreigners. They follow a custom that marriage is generally arranged by their parents. What they worship most are primitive gods such as sun god, Vulcan god, valley god and mountain god. Every village has different mountain gods and different names. Baima people can sing and dance well, and their songs and dances are basically taught by example. Their biggest festival is the Spring Festival. The content of the festival is unique, such as bonfire night, "Chige Day" sacrifice, welcome torch, fire circle dance, sending athel loren and so on. On the second day of the first month, people with the same surname meet and reunite, and then take turns to hold a banquet to enhance the unity within the family. On the 15th and 16th of the first month, men, women and children all wear festive costumes, and the village is the assembly point. During the day, men turned over sheepskin jackets, put on masks and jumped on the "Twelve Faces", which was simple, magnificent and rough. Women crowded together, singing beautiful love songs and toast song. In the evening, every household brought firewood and lit a bonfire. Men, women and children hold hands and form a big circle. Around the burning bonfire, they danced cheerful "fire circle dance" and "round dance" in simple and cheerful white horse music, making the whole hut a sea of singing and dancing joy.