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[Objective] The syrphid flies are a group of important natural enemy insect and insect pollination. This paper aimed to explore the diversity, geographical distribution and faunistic characteristics of Syrphidae in Tibet. Using natural enemy insects and protecting the biodiversity is dedicated to provide you with basic information. [Method]Tibet region was rich in biodiversity and had a special geographical location and human environment. Species data were obtained through field survey and document literature. Combined with the research data, the geographical distribution of the family Syrphidae in Tibet was studied on the basis of the world animal geographical division and China animal geographical division. By geographical distribution and faunistic analyzing, the data of species, geographical distribution and faunistic characteristics was obtained [Result]There were 117 species of Syrphidae in Tibet, belonging to 3 subfamilies, 16 families and 43 genera. The faunistic composition was just like following: 39 species in oriental region, accounting for 33.3 % of the total; 20 species in the Palaearctic region, accounting for 17. 1 % ; and 58 species were cosmopolitan species, accounting for 49.6 %. There were 39 species in Qinghai-Tibet subregion and North China subregion, accounting for 33. 33 %. There were 38 species in Qinghai-Tibet subregion and Northwest subregion, accounting for 32. 5 %. There were 30 species in Qinghai-Tibet subregion and Inner Mongolia-Xinjiang region, accounting for 25. 6 % , which was the same number in Qinghai-Tibet region and central China. [Conclusion] The faunistic of Syrphidae dominated by the widespread species, followed by the oriental ones, and then Palaearctic ones. Among the zoogeographic subregions in China, the species in Qinghai-Ti-bet region and North China region shared the most species. [ABSTRACT FROM AUTHOR]