Qin dynasty: establish the supremacy of imperial power and establish the system of three public officials and nine ministers.

Tang dynasty: implementing the system of three provinces and six departments, weakening relative power

Northern Song Dynasty: It was set up to divide the executive power of the Prime Minister, the Privy Council to divide the military power of the Prime Minister, and the three ministers to divide the financial power of the Prime Minister.

Ming dynasty: the abolition of prime minister solved the long-standing contradiction between monarchical power and relative power.

General trend: monarchical power is constantly strengthened and relative power is constantly weakened.

Its influence: more and more autocratic, but also consolidated the autocratic centralized state.