There are some limitations in the system of estate register in China. It is sure that the system of estate register is an important part in the intending law of real right. At first,this paper sets forth the concept, character and purport of estate register, then presents three typical systems of estate register of the world in the way of comparative jurisprudence. finally, the author draws the conclusion that China ought to take ism of counterwork and the system of formalist censor, and must insist on the principle of "five unifications" in the design of idiographic systems.