Abstract: The document exchange between Tang and Tibet was an important form of cultural
exchange and integration between Tibetan and Han nationality in the Tubo Period. Based on the historical
background analysis, this paper systematically investigates the ways and contents of the document
exchange between Tang and Tubo. It was found that there were four main document exchange ways:
intermarriage, dispatching envoys, bestowing rewards and translation. The contents of the document
exchange mainly focused on Buddhism, Confucianism, history and medicine, as well as agriculture,
animal husbandry, calendar, geomancy, etc. Three characteristics were presented in the document
exchange between Tang and Tubo: the political dominance in exchange means, the difference of exchange
direction, and the selectivity of exchange contents.