This thesis is to discuss how they use "She" in "San Li". Although they are the similar books, there are still differences between them because of various interpretations. Besides, I also talk about the word "Zhu Gan She Yang" from "Li Chi". Since Zheng Xuan explained Gan by shield according to the book "Fang Yan", intellectuals usually explain "Zhu Gan She Yang" as metals decorated on the red shield. Combining with the Unearthed documents, I discuss in depth the word "Zhu Gan She Yang".