The recordation in rem of real property has two articles up to standard. One is Article 758 concerning the juridical act will not effect until the recordation has been made. The other is Article 759 concerning dispose of such rights until recordation has been made. The recordation in rem of real property in our country has adopted the legislation of the principle of the formality. In order to make up for the defect of the principle of the formality, so that it comes into existenceto interlace the phenomenon of the principle of the formality and meaning in the legislation of the rem of real property. Therefore, the legislation should follow the principle of the open and public credibility of the principle of the formality. Only in the special occasions, it needs the way of the principle of the formality. It should be exceptional regulations.