Late Pleistocene witnessed significant changes in lithic technological behaviors, mobility patterns and subsistence strategies in northeastern Eurasia, which are also correlated with paleoclimatic and paleoenvironmental changes. Integrating artifact analysis and paleoenvironmental evidence, Taoshan, a newly excavated archaeological site, provides a crucial case study for evaluating human adaptation in Northeast China. Taoshan site was excavated in 2013-2014, uncovering three prehistoric layers and abundant remains. Here we present the results of a systematic techno-typological analysis of the Late Pleistocene assemblages of the site, and place special emphasis on diachronic cultural developments and underlying dynamics.