利益衡量论是日本学者加藤一郎在批判概念法学弊端的基础上提出的一种法律适用方法。它渊源利益法学并受到现实主义法学的强烈影响,在司法实践中有着广泛的应用。但是关于利益衡量适用的标准和方法颇有争议。利益衡量主要存在法内和法外两个标准。利益衡量时要区分合法利益和非法利益。对非法利益必须抑制,对合法利益重在平衡,最终实现在最小的社会成本的情况下社会利益的最大化。 The measure of interest is a kind of legal application method put forward by Japanese scholar Kato Ichiro on the basis of criticizing the malpractices of conceptual jurisprudence. Its source of interest jurisprudence is strongly influenced by realist jurisprudence and has a wide range of applications in judicial practice. But the standards and methods that apply to the measurement of benefits are controversial. The main measurement of the interests of the two standards of law and foreign law. To measure the interests of the distinction between legitimate interests and illegal interests. We must suppress illegal interests, balance legitimate interests, and ultimately maximize social benefits with minimal social costs.