1 year and 58 1 year, Emperor Wendi of Sui Dynasty abolished the six-part system and established the six-part system in three provinces. The centralized feudal state system was further developed and strengthened. 2. In 583 AD, the three-level system of state, county and county since the Qi and Zhou Dynasties was changed to the two-level system of state and county. Abolish county-level institutions, reduce redundant staff, save national expenses and strengthen the ruling machine. 3.58 1 and 583, Emperor Wendi of Sui sent people to revise the new law twice, which was the Law of Opening the Emperor. Compared with previous laws, Huang Kai Law has many improvements. 4. From 58 1 year, Emperor Wendi of Sui Dynasty implemented the system of land equalization. In 583 AD, Emperor Wendi of Sui Dynasty implemented a light and thin tax policy. In 585 AD, Emperor Wendi of Sui Dynasty reorganized his household registration in order to increase the source of taxes and increase the income from rent adjustment. In addition, the "loss of membership law" was implemented. It is the standard of household division stipulated by the court, and local officials are responsible for dividing households into villages according to the standard as the basis for recruiting officials and setting taxes. Changed the situation of currency chaos. 5. In view of the military system of the government since Wei and Zhou Dynasties, Emperor Wendi of Sui Dynasty broke the national boundaries of the military system, making the national significance of the military system completely disappear, putting a large number of workers into production, which played a positive role in the development of production. 6. Emperor Wendi of Sui Dynasty abolished the "nine-grade system" of selecting officials manipulated by powerful landlords since Wei and Jin Dynasties, and replaced it with the imperial examination system of selecting scholars through examinations.