The most fundamental difference between politics and economy in the history of Qin Dynasty is politics: establishing autocratic centralization and establishing the authority of the emperor. Economically, feudal land ownership was established and consolidated. The economy of the Qin dynasty: First, the private ownership of land was implemented, and taxes were paid per mu. Second, unified measurement. Third, unify the currency. Fourth, unify the track and repair the driveway. Politics in Qin Dynasty: First, establish the supreme imperial power. After the unification of the six countries, Ying Zheng, king of Qin, thought that he had both ability and political integrity, and he was also Huang San, who made great contributions to the five emperors, so the minister became emperor. He stipulated that the emperor had supreme power, and all administrative, military and economic powers were monopolized by the emperor.