During the research of real right behavior,the most important problem lies in that,the open factor is establishing factor or taking effect factor.

The practice of notification system for sci-tech project is studied in this paper to perfect management of sci-tech project and reinforce external inspection of it.

Notification of material power is the notification of material power s rights,not means notification of so-called changing action of material power.

The "bills seized" system, one of important features of salt trade contract, fully reflects the protection of private property, the maintenance of transaction security, and establishing a good operating order, which are similar to the system of real rights changing publicity in the modern ti.

Its application scope is generally confined to the movable property whose publicity way is transfer of possession.

The publication of real right has nothing to do with the protection of real right,and it arises from the need to protect transaction security and save the transaction costs.

Adopting the system reexamine and publication of budget and final accounts of capital construction engineering is important method to standardize the action of invested main body and purify building market.

This article talk over the announcement system of register, points out the defect in our country’s legislation and practice, which is in conflict with the principle of register, expound the function of register in public trusting and risk warning.

The principle of the real estate right announcement is mainly realized by the registration system in practice, but being the carrier of the real estate right registration, the register didn t attract a corresponding attention in the theory study and practice.