The idea of the “Filial Ruled” is based on the “Book of Filial Piety”, we can grasp the concept of “Filial Ruled” through the content and discussion in the “Book of Filial Piety”. Within the area of “Filial Ruled”, “Political Filial Piety” has the function of harmonizing between “Loyalty” and “Filial Piety”, increasing the possibility of “transfomring filial piety to loyalty”. Therefore, this article first affirms the time when the “Book of Filial Piety” was written. It will then focus on its thoughts and background, in order to grasp the essence of “Filial Ruled” in the “Book of Filial Piety”. This article considers Western Han Dynasty as the initial stage of practicing “Filial Ruled”, which became popularized in Eastern Han Dynasty, but decades in Wei Jin Dynasty. With the above discussion on the three stages, we hope to understand how the idea of “Filial Ruled” is carried out in real life, as well as its needs and restrictions.