According to the shape and system of the Guqin described in Qi Fa (《七发》) that was written by Mei Cheng, a poet and writer on FU in the Western Han Dynasty,many scholars interpreted the word “Yue”( 约 ) as the Guqin emblem, and inferred that the instrument emblem had already appeared in the Western Han Dynasty, or interpreted it as Qin Zhen. Nevertheless,comparative reading the Chinese script Fan Yin (《反淫》) collected by Peking University and Qi Fa could textually verify that the word“Gu”(穀)corresponds to“Yue”,both referring to the Rongkou (绒扣) on the Guqin, while the Guqin parts described in these two writings did not involve the emblem. By studying the meaning of the word“Hui” ( 徽 ) and relevant documents with unearthed cultural relics as well,we can see that the word“Hui”began to point to the Guqin emblem in Ji Kang's Qin Fu (《琴赋》),and then deduced that the Guqin emblem appeared about the end of the Han Dynasty and the beginning of The Three Kingdoms,and finally formed 13 emblems as late as the Eastern Jin Dynasty.The appearance of the emblems facilitated overtone producing and tone pressing,and directly impacted on the development of the Guqin playing techniques.Clarifying the generating era of the Guqin emblem is of positive significance for the research issues in ancient music history,such as the generation of Guqin notation and the practical application of just intonation.