China is the hometown of tea, and the spread of tea and tea culture abroad began in the Tang Dynasty. The Tang Dynasty is an important development stage of tea culture in China, and it is also an important period for tea and tea culture to spread to neighboring countries and regions. During this period, the external communication of tea culture mainly showed the following characteristics:

1, paying more attention to spiritual and aesthetic connotation than material enjoyment. Some monks, overseas students and officials from Korea, Japan, Vietnam and other countries have lived in China for a long time. They learned the way of tasting tea in the Tang Dynasty and the aesthetic feeling gained from it, and also brought the spiritual core of tea culture back to their own country.

2. Monks have played a vital role in the spread of tea culture.

3. Tea exchange in this period is a cultural exchange, not a commodity trade activity. The spread of tea culture is not only the output of tea as a consumer product, but also the output of cultural lifestyle and aesthetic taste related to tea.

4. In the geopolitical order pattern of center-periphery, tea flows from "cultural highland" to "cultural depression". In the Tang Dynasty, China was at the center of world culture, with a lot of material and spiritual wealth, occupying the commanding heights of culture, and the surrounding tribes and countries were actively and sincerely absorbing Tang Wenhua's nutrition.