The function of Shang Yang's political reform: promoting social progress and historical development, innovating politics, developing economy and strengthening military affairs. It promoted social progress and historical development, and Shang Yang's political reform was a relatively thorough reform movement.
Through reform, Qin abolished the old system and established a new system suitable for social and economic development. After Shang Yang's political reform, Qin's economy developed, and the fighting capacity of the army continued to strengthen, and it developed into the most powerful centralized country in the late Warring States period.
Background The Spring and Autumn Period and the Warring States Period is a transitional period when the enfeoffment system collapsed and the centralization system was established. During this period, the use of iron farm tools and the gradual popularization of Niu Geng led to the initial state-owned land. In the early Warring States, the collapse of the well-field system and the emergence of private ownership of land, the tax reform of Qin was later than that of the other six countries, and the social and economic development was also behind the six countries of Qi, Chu, Yan, Zhao, Wei and Han.
In order to strengthen the strength of Qin, it is in a favorable position in the hegemony of vassal States, not being annexed by other countries, and introducing talents. With the growth of its economic strength, the emerging military landlord class demands corresponding political rights, which causes changes in social order. Therefore, there are demands for political reform, the development of feudal economy and the establishment of landlord class rule. Countries have set off political reform movements, such as the Li Kui Reform of Wei State and the Wuqi Reform of Chu State.