According to Langacker's idea that "Lexicon and grammar form a continuum of symbolic elements ",adopting Grammatical and Symbolic Metaphor as a cognitive tool,this paper gives a cognitive explanation of "Active Voice but Passive Meaning" and studies the semantic features of active voice of English verbs:the active form expresses active multi-meanings,i.e.Subjects' autonomy,Subjects' causing,Active potentiality,Acti...