Hani nationality, known as Akka nationality in Southeast Asia, whose national language is hani language, belongs to Yi branch of Tibeto-Burman language family of Sino-Tibetan language family. Modern Hani people use newly created phonetic symbols based on Latin letters.
Hani, Yi and Lahu nationalities originated from the ancient Qiang nationality. The ancient Qiang people nomadic in the Qinghai-Tibet Plateau. During the period from 384 BC to 362 BC, the Qin Dynasty expanded rapidly, and the nomadic groups of the ancient Qiang people living on the Qinghai-Tibet Plateau were hit, dispersed and migrated, and some names of the evolution of the Qiang people appeared.
"He Yi" is a branch of the ancient Qiang people's southward migration tribe. After they settled in Dadu River, they started farming life in order to adapt to the geographical environment and conditions of local Pingba and "Cooper's own life". After the Hani people settled and farmed in Dadu River, they were forced to leave the farming settlement and migrate again due to war and other reasons, and entered Ailao Mountain in subtropical Yunnan.
Most Hani people live halfway up the mountain, and villages are built according to the mountain situation. Hani people are mainly engaged in agriculture and are good at growing tea, which has a long history. Gelang and Nannuo Mountain in Xishuangbanna are important producing areas of Pu 'er tea, and their tea production accounts for one third of Yunnan's total output. Hani people are mainly distributed between Yuanjiang and Lancang River in China, and live in counties such as Honghe, Jiangcheng, Mojiang, Xinping and Zhenyuan.