Almost every stage of the rise of the Tibetan tea culture cannot be separated from the horse trading,the tea-horse trade is also based on the propagation of the tea culture in Tibetan area.

In Tang dynasty, the reasons that Tea-horse trade between Han and Tibet was underdeveloped are following: ruling policy of nationalities, stressing policy of Horse, no forming the mode of drinking tea in Tibet.

Tea-horse trade started in Tang,developed in Song,prospered in Ming,declined in Qing.

In the history of tea trade between the British East India Company and China, the country trade played a special and important role.

The writer explores the origin of Britain s East India Company s tea trade with China by concentrating on the company s establishment and flourishing in 17th Century,its foreign trade guideline and the occurrence and development of its tea trade with China.

In Qing Dynasty tea trade produced positive impact on the development of tea production,transportation,bank businessand economy and it also became an important diplomatic and military tool of Qing Dynasty.

And the goods circulating tide led by tea-horse and tea-salt trade strengthened the economic connection between two bazaars of .