People work in the tea factory. [Photo/China.com.cn] 

Tibetan tea has a history of more than one thousand years. From the ancient times until now, Ya'an city of southwest China's Sichuan province is the production center of Tibetan tea.

Ya'an Tibetan tea, with long history and exquisite techniques, has been listed in the second batch of state-level intangible cultural heritage.

A female worker selects the tea carefully. [Photo/China.com.cn]

The old photo of the Ancient Tea Horse Road. [Photo/China.com.cn]

The hardest road of the Ancient Tea Horse Road is from southwest China's Ya'an to Kangding. Porters usually climb the mountains with heavy packages on the back. [Photo/China.com.cn]

The first station of the Ancient Tea Horse Road. [Photo/China.com.cn]

The Tibetan tea. [Photo/China.com.cn]

Female workers produce the Tibetan tea with 400-year-old techniques. [Photo/China.com.cn]

Tibetan tea made in Qing Dynasty is displayed in the Tibetan Tea Museum. [Photo/China.com.cn]

                                                                                                                                               Editor: Lily Li