So,being the basic element of the civil act of law,declaration of will plays a more and more role.

The characteristics of electronic declaration of will in electronic contract are introduced,as well as the impact of it upon the relevant systems of traditional contract law.

The author,based on the concept of civil justice act,proposes that legalization shall not be the necessary element of civil justice act while the emphasis should be placed on the declaration of will in legal acts as well as the pursuit of effects in private law.

Concerning the defects of meaning expression in the network environment;

The constitution of meaning expression is one of the fundamental problems in the civil law.

Our country already has founded a relatively perfect legislation and a set of judicial interpretation rule about the meaning expression which is under the realistic environment.

Research on the Theory of Reliance Protection and Declaration of Intention Explanation;

As the core of the system of legal acts,declaration of intention is the basis of the effectiveness of legal acts,also the base point of the estimation of the value of the legal acts.

The conception of juristic act must include its core factor declaration of intention and therefore should be emphasized that it brings about private law effect,not as a kind of juristic fact,but as a kind o.

The expression of intention system that the concerned person uses in the land expropriation, can be fallen into two categories: the latter in our legislations.

Act of negotiable instruments is a legal act on negotiable instruments by an actor, with the expression of intention as its essential element.