Abstract: Forty stone artifacts were unearthed from the primary context of archaeological deposits at the Shirengou site, Helong county, Yanbian city of Jilin province. These objects include cores, flakes, microblades, used flakes, scrapers, burins and backed knives. Obsidian is the only raw material used for this stone assemblage. Major blanks for tools fabrication are flakes and blades. The principal flaking technique at the site is mainly direct hammer percussion, also indirect percussion. Modified tools appear to be retouched by direct hard hammer percussion, mostly soft hammer percussion, followed by pressure technique. According to the characteristics of this deposit (such as no polish on the stone artifacts, and no pottery) and the stratum yielding the stone artifacts, we suggest that the site is probably late Late Pleistocene or Late Paleolithic.

Key words: Shirengou; Blade core; Late Paleolithic