Diligent and intelligent Sani women have cultivated and developed the ambiguous nature and exquisite manual sewing skills in the beautiful landscapes. Their costumes are exquisite, colorful, generous and bright, and a dress is a fine piece of art. Picturesque scenery is an important part of the historical and cultural background of Yi township. From the colorful patterns of costumes, we see the shadow of blue sky, white clouds and exotic flowers. The natural landscape and cultural landscape blend with each other, which cultivates the aesthetic concept of the Yi people and cultivates the noble sentiment of the Yi people. The clothing is not only used to protect the cold, but also a flower of national culture.