In order to explore whether the second foreign language processing is influenced by the similarity of syntactic structure with other language and the proficiency of the second foreign language, and which is the main influencing factor. In this study, the Event-Related Potentials (ERP), which is very sensitive to sentence processing in Brain evoked potential analysis, is used to study English passive sentences. Through five series of experiments, it is found that there are three clear ERP components and the second language has unbalanced development of semantic processing ability and partial processing ability in second language sentence sub-processing. The result partially verifies the transfer effect of the first language to the second language, that’s, the similarity effect of syntactic structures of the first on the second language

Second Language Learners, Sentence Processing, English Passive Sentences, Brain Evoked Potential Analysis