According dependency syntactic theory this paper gave Tibetan typed dependencies and its hierarchy,and then we analyzed some problems in building Tibetan dependency Treebank.We proposed a mode to construct dependency tree semi-automatically,it includes word-pairs dependency classification model and dependency edges annotation model with rich features template based on Tibetan language grammar.And we implemented visualized tool which used to build and proofreading 11thousand sentences Treebank.On the baseline system the experimental results show that,the dependency recognition accuracy obtains an improvement of 3%.