Based on the result of experiments and the data from the corpus,this paper makes a comparative study between grammaticalization and grammar acquisition of mother tongue from the perspective of childrens’ acquisition of passive construction.

A full interpretation of the derivation of English passive cannot be made via Case Theory and EPP; formation of the passive construction concerns passivivation of the transitive in the syntactic level.

The paper believes that in a topic-prominent language, the more the passive construction is used,the more perfect the function o.

From the contrastive perspective,the author summarizes the active structures of passive meanings and the passive structures of active meanings in English,and illustrates the semantic features both of active structures and of passive structures.

There are two types of passive voice used in English: passive structure and quasi passive structure.

Non-signed passive form-idea passive form,pseudo-signed passive form-"You"-sentence,nominal-signed passive form-passive structure and the "Bei V"-type compound words are excluded from the genuine passive form.

Meanwhile, through agentive-recipient semantic relationship in Japanese, passive sentence, depending on the direct or indirect influences upon recipient, is divided into direct and indirect passive sentence.