Abstract: The Hetuvidyā in Tibetan Language-Areas is a kind of logic inherited and developed from a set of Tibetan books, One important part of Hetuvidyā in Tibetan Language-Areas is Pramana (the way and consequence of acquiring knowledge), which is also included by Hetuvidyā in Chinese Language-Areas and Hetuvidyā in Tibetan Language-Areas belong to the same subject, and the two Hetuvidyā have not difference in essence but in emphasis.