中文摘要：

目前国内的习惯法研究中存在着严重的概念混乱，为澄清概念混乱，在习惯法研究中应慎用“民间法”概念，并应对习惯法研究的核心概念进行正确区分。立足于事实与规范二分的研究立场，可将作为默会性知识的习惯与作为事实性规范的习惯法进行区分。在理论上厘清习惯法研究的概念谱系，有利于为法官在司法实践中提供习惯法的识别标准和适用方法。

英文摘要：

At present, serious confusion of concepts exists in the domestic study of the customary law. To clarify the conceptive chaos, ＂folk law＂ concept should not be used in the customary law research. Based on the dichotomy of fact and norm, the custom as a tacit knowledge should be distinguished from the norm as customary law. It is helpful for judges to have a clear genealogy of law concepts, which will allow them in the judicial practice, to provide recognition standard and applying methods of custom laws.