Dahan nationality is the direct descendant of tribal crystallization in the Yellow River Basin. This is the origin of our Han nationality. But it was also called the Chinese nation at that time. This is a broad definition. It was not until the birth of Ying Zheng, the founder of the overall national consciousness of the Han nationality, that China's national view was fully formed. However, the concept of "four barbarians" has been established, namely, the Hu people in the north of the Loess Plateau, the barbarians in the east, the barbarians in the south and the Qiang people in the west. Xia dynasty was surrounded by barbarians all the way to Shang dynasty. Great conquerors began to crusade and slaughter in places where China was not ruled by dynasties, and the criminal law of Shang Dynasty eliminated and assimilated ethnic minorities in all directions.