2009年6月—7月,在青藏高原边缘地区调查、试掘了6处遗址,获得一批石制品、动物骨骼残片、火塘等材料。石制品多数个体较小,类型包括石核、石片、工具、断块、细石核、细石叶等。通过对比出土材料及部分遗址测年数据判断,6处遗址的年代处于13ka BP左右的晚更新世至全新世。此次调查试掘,丰富了该区域人类活动的证据,对研究青藏高原环境变化、古人类的适应生存过程及技术交流有一定意义。 From June to July 2009, 6 sites were excavated in the marginal area of ​​the Qinghai-Tibet Plateau to obtain a number of materials such as stone products, animal skeletal fragments and fire ponds. Most of the smaller individual stone products, types include stone, stone, tools, broken blocks, fine stone core, fine stone leaf and so on. By comparing the dating data of excavated materials and some sites, we can see that the age of the six sites is from Late Pleistocene to Holocene at about 13ka BP. The investigation and excavation have enriched the evidence of human activities in the region and are of some significance for studying the environmental changes in the Tibetan Plateau, the adaptation and survival of ancient humans and technological exchanges.