Mojiang Hani Autonomous County (墨江哈尼族自治县; pinyin: Mòjiāng hānízú Zìzhìxiàn) is an autonomous county under the jurisdiction of Pu'er Prefecture, Yunnan Province, China. It is in the south of Yunnan province, the east of Pu’er prefecture. There is 350 kilometers from the north of it to Kunming city. 

Mojiang Hani Autonomous County (墨江哈尼族自治县) is an autonomous county under the jurisdiction of Pu'er Prefecture, Yunnan Province, China. Mojiang International Twins Festival (the Sun Festival of Hani Ethnic Group) is held every year in Mojiang County, attracting over one thousand of twins from different countries and regions. During the festival, celebrating activities include Twins Talents Show, Beauty Pageant, Fist Guessing Contest of Hani People, Twins Parade, Pilgrimage to the Twin Wells and Carnival called “Painting Your Face Black” etc.

The History of Hani People

The Hani legend tells that their ancestors are nomads from the south of Dadu River in today’s Sichuan Province in the 3rd century BC. They gradually migrated south and settled in today’s Yunnan Province.

The History of Tea Horse Road

The Tea Horse Road or chamadao (simplified Chinese: 茶马道; traditional Chinese: 茶馬道), now generally referred to as the Ancient Tea Horse Road or chama gudao (simplified Chinese: 茶马古道; traditional Chinese: 茶馬古道) was a network of caravan paths winding through the mountains of Sichuan, Yunnan and Guizhou in Southwest China.It is also sometimes referred to as the Southern Silk Road. The route extended to Bengal in the Indian subcontinent.

From around a thousand years ago, the Ancient Tea Route was a trade link from Yunnan, one of the first tea-producing regions: to Bengal via Burma; to Tibet; and to central China via Sichuan Province.In addition to tea, the mule caravans carried salt. Both people and horses carried heavy loads, the tea porters sometimes carrying over 60–90 kg, which was often more than their own body weight in tea.

It is believed that it was through this trading network that tea (typically tea bricks) first spread across China and Asia from its origins in Pu'er County, near Simao Prefecture in Yunnan.

The route earned the name Tea-Horse Road because of the common trade of Tibetan ponies for Chinese tea, a practice dating back at least to the Song dynasty, when the sturdy horses were important for China to fight warring nomads in the north.