Kangxi finally completed the unification of the whole country and established a powerful feudal empire. In order to ease class contradictions and stabilize social order, he took a series of measures to restore the rural economy. After the cruel exploitation and war in the late Ming Dynasty, the people had a chance to settle down. After decades of rest and recuperation, the whole society gradually recovered its prosperity and accumulated great wealth for the Qing Dynasty. The policy of restricting foreign trade effectively curbed the invasion of early western colonial forces and ensured the development of feudal economy. The rulers of the Qing Dynasty inherited and further strengthened the centralized political system of the Ming Dynasty, and stipulated that the central organs should be restored from the cabinet to the six ministries, and the Manchu and the Han were equally divided. But in fact, the central power is not in the cabinet. Before Yongzheng, a king's meeting composed of Manchu nobles was held. After Yongzheng, the military department was full of military ministers, and all important issues were finally decided by the emperor, forming an extremely autocratic feudal rule.