Lancang Lahu Autonomous County (simplified Chinese: 澜沧拉祜族自治县; traditional Chinese: 瀾滄拉祜族自治縣; pinyin: Láncāng lāhùzú Zìzhìxiàn) is an autonomous county under the jurisdiction of Pu'er City, in southwestern Yunnan province, China. Lancang is the same as Lan Xang, and refers to the Mekong River (known in Chinese as the Lancang) on its eastern borders and adopted by modern Laos, a Tai word meaning Million Elephants. A large portion of the population are of Lahu ethnicity, and Lahu language is one of the official languages in the county. The Aciga 阿茨戛 people of Lancang County number about 50 individuals, and are located in Yakou Township 雅口乡 and Nanxian Township 南现乡 (You 2013:134). Their original language had become extinct, and the Aciga now speak Chinese and Yi. The Aciga are currently classified by the Chinese government as ethnic Yi. Lancang Lahu Autonomous County is a multi-cultural city with many ethnic minority groups, including the Dai, Yi, Hani etc. They live together harmoniously and retain their cultural legacy and life practices. When you travel to Lancang Lahu Autonomous County, you can buy much things as Pu’er or Pu-erh Tea(普洱茶), Lahu People Clothes(拉祜族服饰), Lancang Walnut(澜沧核桃) and so on.

Pu’er or Pu-erh Tea(普洱茶)

Pu-erh or Pu'er is a variety of fermented and aged dark tea produced in Yunnan province, China. Fermentation in the context of tea production involves microbial fermentation and oxidation of the tea leaves, after they have been dried and rolled.This process is a Chinese specialty and produces tea known as Hei Cha (黑茶), commonly translated as dark, or black tea (this type of tea is different from what in the West is known as "black tea", which in China is called "red tea" 红茶). The best known variety of this category of tea is Pu-erh from Yunnan Province, named after the trading post for dark tea during imperial China.

Pu'er traditionally begins as a raw product known as "rough" Mao Cha (毛茶) and can be sold in this form or pressed into a number of shapes and sold as "raw" Sheng Cha (生茶). Both of these forms then undergo the complex process of gradual fermentation and maturation with time. The Wo Dui fermentation process (渥堆) developed in 1973 by the Kunming Tea Factory:206 created a new type of pu-erh tea. This process involves an accelerated fermentation into "ripe" Shu Cha (熟茶) which is then stored loose or pressed into various shapes. The fermentation process was adopted at the Menghai Tea Factory shortly after and technically developed there.The legitimacy of shu cha is disputed by some traditionalists in contrast to aged teas. All types of pu-erh can be stored to mature before consumption, which is why it is commonly labelled with year and region of production.

Lahu People Clothes(拉祜族服饰)

Black is their favorite color. Traditionally the men wear black coats, trousers, and black belts around their heads. Women's gowns greatly resemble cheong-sam (the traditional long dress with high collar and slit skirt).

Lancang Walnut(澜沧核桃)

Walnuts are rounded, single-seeded stone fruits of the walnut tree commonly used for the meat after fully ripening. Following full ripening, the removal of the husk reveals the wrinkly walnut shell, which is usually commercially found in two segments (three-segment shells can also form). During the ripening process, the husk will become brittle and the shell hard. The shell encloses the kernel or meat, which is usually made up of two halves separated by a partition. The seed kernels – commonly available as shelled walnuts – are enclosed in a brown seed coat which contains antioxidants. The antioxidants protect the oil-rich seed from atmospheric oxygen, thereby preventing rancidity. Walnuts are late to grow leaves, typically not until more than halfway through the spring. They secrete chemicals into the soil to prevent competing vegetation from growing. Because of this, flowers or vegetable gardens should not be planted close to them.