As many as 670 specimens of sphingidae were collected by the authors in Taitong-Kongtongshan Nature Reserve from 2006 to 2011. A total of 56 species belonged to 26 genera of 5 subfamilies,of which 7 genera and 27 species were the new by recorded in Gansu. Ambulicinae was the dominant group,a total of 24 species belonging to 9 genera. The dominance of the genus was 34. 62% and that of the species was 42. 86% s Acherontiinae was the sub-dominant group,the dominance of the genus being 26. 92% and that of the species being 19. 64%. There were 5 species in 2 genera of Sesiinae,which was rarely found,the dominance of the genus was 7. 69% and that of the species was 8. 93%. An analysis of insect fauna materials showed that 10 species appertained to the Oriental Realm, making up 17. 86% of our collection; 16 species belonged to the Palaearctic Realm,making up 29. 2% of the total, and other 30 species about 53. 57% of the total were scattering widely in the two realms mentioned above. As the results showed the Taitong-Kongtongshan Nature Reserve in insect fauna is sifuated in the transitional region between the Oriental and the Palaearctic Sones on the southeast border of the palaearctic. Therefore,species of Sphin-gidae are rich and diverse.%2006年6月～2011年9月,采集到甘肃太统—崆峒山自然保护区的天蛾科昆虫标本670号.鉴定到天蛾56种及亚种,隶属5亚科26属.其中有保护区7个新记录属和27个新记录种及亚种.分布的天蛾占甘肃省天蛾科总属的81.25％,总种数的70.0％.云纹天蛾亚科为优势类群(有9属24种,属的优势度为34.62％,种为42.86％)；面形天蛾亚科为次优势类群(有7属11种,属占26.92％,种占19.64％);透翅天蛾亚科为罕见类群(有2属5种,属占7.69％,种占8.93％).属于东洋界的种类占17.86％;属于古北界的种类占29.2％；两界兼有的种类占53.57％.结果表明,太统—崆峒山自然保护区在动物地理区划上属于东洋界向古北界的过渡地带(古北界的东南边缘区),天蛾物种多样性较为丰富.
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