Abstract: The Shuanghe Paleolithic locality 1 buried in the third terrace of the left bank of the Danjiang River, and located in the Shuanghe town, Xichuan County, Henan Province. The locality was excavated from 2010 by the Department of history of Science & Scientific Archaeology of University of Science & Technology of China, as a salvageable archaeological project due to the construction of the Danjiang Reservoir dam at a higher latitude. The excavation exposed an area of 400m2. A total of 225 stone artifacts were unearthed. The stone assemblage includes cores, flakes, retouched tools, chunks and split and so on. Human mainly used quartz cobbles to flake and retouch tools. The principal flaking technique was direct hammer percussion. Most stone artifacts were small or medium in size. Pebble retouched tools were dominated, especially choppers. Most tools were retouched in one end of the pebble. The characteristics contained South China Paleolithic industry elements, as well the flake tools were in appearance. The Stratigraphic and topographic comparison with other site showed that the site likely formed in the Middle Pleistocene.

Key words: Danjiangkou Reservoir Region; Shuanghe Locality 1; The Third Terrace; Pebble Tool Industry; Middle Pleistocene