Abstract
The change of real right is one of the core issues, and the protection of third party’s interests acting in good faith is an important content of the change of real right. Based on the letter the principle of publicity, goodwill and a system of property rights without due to the exposition of the theory, analysis and comparison, demonstrative principle of real right is one of the basic principles of modern property law ,the theoretical foundation of the protection of third party’s interests acting in good faith in the change of real right. Acquisition in good faith is a concrete manifestation of the demonstrative principle of real right, and also be developed in China's 《Property Rights Law》,can take up to protect third party’s interests acting in good faith . Although the real right behavior without reason can protect the safety of transactions, because of it has many constant disputes, and its own drawbacks and defects ,should be rejected. Furthermore, I think that our law should be based on the demonstrative principle of real right, together with acquisition in good faith to protect third party acting in good faith in the change of real right.
Key words:
the change of real right; third party acting in good faith; demonstrative principle of real right; acquisition in good faith; the real right behavior without reason