作为一项重要的法律制度,不动产预告登记的核心在于其法律效力。我国最新颁布的《物权法》第20条便对此做了相应的规定,该条明确了不动产预告登记的效力在于保全以不动产物权变动为内容的债权请求权。然而,由于该条的内容较为抽象,并存在一定疑问,不利于司法实践,故有进一步研究的必要。 As an important legal system, the core of immovable property registration lies in its legal effect. The latest promulgation of the “Property Law” Article 20 of this provision made the corresponding provisions, which made it clear that the real estate advance notice registration is to preserve the real estate property rights as the content of changes in claims. However, due to the abstraction of the article and the existence of certain doubt, which is not conducive to judicial practice, it is necessary for further study.