知识产权制度是创造运用知识财产的基本制度。而在知识产权法律属性的界定中,知识产权法定主义和知识产权自然权利主义一直是争论焦灼的两种观点。本文对这两种观点都持一种质疑的态度,并从知识产权的产生,知识产权的理论建构,知识产权的实践层面论证知识产权的法律属性。认为知识产权本身具有法定权利和自然权利的双重属性,是一种在不同运用或解释框架之内两种属性接替出现的一种权利。 Intellectual property system is to create the basic system of the use of intellectual property. However, in the definition of the legal attribute of intellectual property, the legalization of intellectual property and the natural rights of intellectual property have always been the two views that the debate is anxious about. This article holds a skeptical attitude towards both of these views. It also argues the legal attributes of intellectual property from the aspects of the production of intellectual property, the theoretical construction of intellectual property and the practice of intellectual property. It is a kind of right that the two properties of intellectual property itself have legal rights and natural rights appear in the framework of different application or explanation.