文章从法学理论角度分别阐述海域使用权的物权、他物权及用益物权属性;通过与土地使用权、渔业权、矿业权的比较,并结合用海实践,考察海域物权的用益物权性质对于海洋环境保护、海洋资源合理配置的积极制度价值。 This article elaborates the property right, the property right and the usufruct attribute of the right to use the sea area respectively from the perspective of jurisprudence. Through the comparison with the land use right, the fishery right and the mining right, combined with the practice of using the sea, the article investigates the usufruct of the real right of the sea area The nature of the right for the marine environment protection, rational allocation of marine resources, the positive value of the system.