///In this paper, the tectonic background and evolution of Eastern Asia as a whole are studied from the results of numerous authors relative to different sub-regions. The synthetic study shows that the tectonic evolution of Eastern Asia can be divided into three stages. According to the geodynamical background since Yanshan of Eastern Asia experienced and the distinction among the different areas, Eastern Asia can be divided into 7 tectonic domains. This division is meaningful for understanding basins forming mechanism as well as for analogue analysis between basins for prediction of petroleum resources.