The concept of quasi-property is the premise of analytical quasi-property nature of sea area using rights. In the thesis, firstly, the comparation of the quasi-property with the property and definition of the connotation of the quasi-property were done.Then in terms of the legalization , public trust and validity of property were confirmed. The sea area using rights has the same fundamental nature as a typical property. Furthermore, in terms of the legislation stylistic rules and layout, the object and the ...