The ritual system of Bi Using is an important part of the rites in Pre Qin period. It was comprised of several sorts, such as "Chao Bi"(朝币), "Xiang Bi"(飨币), "Chou Bi"(酬币)and "Lao Bi"(劳币). Through the research on ritual text,inscriptions of bronze and bamboo and wooden documents excavated,the paper reveals that it was initiated in Western Chou,and lasted to Warring States,even early Han Dynasty.
