贝币、布币、刀币、圜钱是先秦时期四大货币体系。刀币的起源比较复杂,它与民族交流和当地经济发展情况密切相关。以考古学材料为基础结合民族学相关理论,能合理解释刀币起源——刀币首先起源于北方游牧民族,被周边其它民族、国家接受,后由经济发达、国力强盛的齐、燕两国大力推行,逐渐形成刀币系统。 Coin, cloth currency, knife currency, money is the four major monetary system before the Qin Dynasty. The origins of the knife currency are rather complicated. It is closely related to ethnic exchanges and local economic development. Based on archaeological materials and ethnological theory, it can reasonably explain the origins of knives and knuckles - the knives first originated from nomads in the north and were accepted by other ethnic groups and countries around the country. The economically advanced and powerful national economies of both Qi and Yan Vigorously promote the gradual formation of knife currency system.