The enfeoffment system was an important measure to consolidate the rule of the Western Zhou Dynasty, a measure for the Zhou people to rule the conquered land and people, and a redistribution system of power and property within the ruling class at that time. The principle and object of enfeoffment system is enfeoffment according to the blood relationship and contribution (assistance and alliance) with Zhou Wang, and its premise is to recognize the rule of Zhou Wang or the ancient emperor. In the enfeoffment system, granting people territory is the core content of the enfeoffment system.

Patriarchal clan system is a social and political system established by the rulers of the Western Zhou Dynasty, which uses blood relationship to maintain the order of political relations. It is the basis of enfeoffment system and well field system, and it is the principle to adjust the order of power and property inheritance and distribution within the ruling class.

The basic principle of patriarchal clan system is: "it is not virtuous to stand up for the elders, and it is not long to stand up for the nobles." (Biography of the Spring and Autumn Ram was hidden in AD. )