Centralization and absolute monarchy were established in the Qin Dynasty. The basic feature is: the emperor as the center to form a ruling institution from the central to the local. The official position is not hereditary, and the salary system is implemented, which is appointed and removed by the emperor. The division of official positions is clear, which not only cooperates with each other, but also contains each other.

With the establishment of centralization, the national strength of the Qin Dynasty increased day by day, forming the first unified multi-ethnic country in the history of China.