The present invention relates to a system for managing real-estate registration and providing information about the real-estate registration, and more particularly, to a method for providing a changed detail of a certified copy of a real-estate register book to terminals of real-estate agents or user terminals. For this, a system for managing real-estate registration and providing information about the real-estate registration according to the present invention includes : a server for managing real-estates on sale, the server storing real-estate transaction information received from terminals of the real-estate agents; and an information providing server which receives a changed detail about a certified copy of a real-estate register book relating to a real-estate included in the real-estate transaction information from a real-estate registration server storing the changed detail about a certified copy of a real-estate register book by using the real-estate transaction information received from the server for managing real-estates on sale, and provides the changed detail to the terminals of the real-estate agents or the user terminals.(110) Real-estate registration server(120) On-sale real-estate management server(130) Information providing server(140) Agent terminal(150) User terminalCOPYRIGHT KIPO 2017