Dai costumes, men wear collarless double-breasted or big-breasted small sleeve blouses, black or white long-sleeved trousers, blankets in cold weather, and white or blue cloth covers. The custom of tattooing is very common. When a boy is eleven or two years old, he is asked to tattoo various animals, flowers, geometric patterns or Dai patterns on his chest, back, abdomen, waist and limbs as decoration. Women traditionally wear short sleeves and skirts. Dai women's clothing is famous for its beauty and generosity, with strong national characteristics and different places. But the bundle of hair, skirt and blouse are the same. Dai women in Xishuangbanna, wearing white or scarlet underwear, have a small waist, a wide hem and various tubular skirts. Women in mangshi and other places wore light-colored big-breasted blouses, trousers and small waists before marriage, but changed to sheepskin double-breasted blouses and black tube skirts after marriage. Dai women's hair bundles are different from those of Miao, Yao and other ethnic groups. They put their hair in a bun at the back of the head or slightly to one side of the brain. This bun is generally not tied, and some only wear a comb or a flower scarf. Dai women's tube skirts, like buckets, are different from Jingpo, Wa and Bulang nationalities in that they grow to the instep. Dai women's blouses, especially the narrow-sleeved blouses in the western double edition, are more unique in national style, with long and thin sleeves, only enough to fit into one arm; The body of the shirt, except tight-fitting, only reaches the waist, and the back swing is not as good as the waist, and a little back is exposed, which adds a lot of color to the whole clothing. Women's clothing of the Dai nationality in the mainland is basically the same as that of the frontier, but it has regional characteristics, and is often called "Huayao Dai" and "Daidai with big sleeves" by other ethnic groups.

Tooth dyeing, in which teeth are dyed black with black smoke, is regarded as a kind of beauty by Dai women, just like male and female tattoos. Outside Xishuangbanna, Hei Chi's elderly women can be seen everywhere, but they have disappeared among young people.

Dai women's dress is the most beautiful in the world. Just like proud as a peacock, it is colorful, beautiful and breathtaking. As long as people who know the situation feel that this statement is not exaggerated at all. Generally speaking, Dai women are slim, pure and beautiful, graceful and graceful, so they are known as "golden peacocks". They are not only beautiful, but also good at dressing up, dressing themselves up as beautiful as flowers and pure as jade with unique costumes. Dai women generally like to wear short sleeves and skirts to fully display their slender bodies. Wearing a white or crimson underwear on it, the outside is a tight jacket, with narrow sleeves and a large collar, and there are also double-breasted, with pink, light yellow, light green, white, sky blue and other colors. Now it is mostly sewn with georgette, silk, dacron and other materials. Narrow-sleeved blouses are tightly wrapped around their arms, and there is almost no gap. Many people also like to sew with flesh-colored materials. If you don't look carefully, you can't see the sleeves. The front and back skirts are just waist-length, tightly wrapped around your body, and a silver belt is used to tie the short-sleeved shirt and the skirt, and the skirt is ankle-long. The waist is slim and small, and the hem is wide. This kind of costume of Dai women fully shows the beauty of women's breasts, waist and buttocks. In addition, the fabric used is soft and bright, giving people a graceful and elegant feeling no matter when walking or doing things.

Dai men usually wear collarless double-breasted or big-breasted small sleeve shirts, long-sleeved trousers, white cloth, blue cloth or crimson cloth, and some wear tweed hats, which makes them look natural and unrestrained.

Dai people, both men and women, always like to carry a shoulder bag (tube handkerchief) made of woven cotton on their shoulders when they go out. The satchel has bright colors, simple style and strong life color and national characteristics. Patterns include rare birds and animals, trees and flowers or geometric figures, which are vivid and lifelike. Each pattern contains specific contents, such as: red and green are to commemorate ancestors; Peacock pattern indicates good luck; The elephant pattern symbolizes a bumper harvest and a beautiful life; It fully shows the Dai people's yearning and pursuit of a better life.