Abstract: This paper will briefly introduce the new findings of micro-blade remains in North China in recent years, and have preliminary discussed about emergence and dispersal of microblade techniques in this region. These new findings indicate that the emergence of microblade technology in North China around 29-26 kaBP might be influenced by the environmental changes in the MIS2 stage, which push the Altai and other central-northern Asian people to migrate southward to North China along with the new lithic technology. Subsequently in North China, the emergence and dispersal of the boat-shape micro-blade core technology reflects the adaptation strategy of the local populations, dealing with environmental changes during the LGM period. The advance and retreat of the wedge-shape micro-blade core technique also shows the coupling of the mobility and environmental changes in the area of Northeast Asia at the terminal of Late Pleistocene.

Key words: Micro-blade Technology; boat-shape micro-blade core; wedge-shape micro-blade core; MIS2; Human migration