Teachers play a very important role in Second Language Acquisition, which is noted by many educators and researchers. This paper tries to prove the importance of teachers’ role in Second Language Acquisition by discussing several factors that influence second language learners’ study. It also proposes the ways of training and improving students’ learning strategies Teachers play a very important role in Second Language Acquisition, which is noted by many educators and researchers. This paper tries to prove the importance of teachers ’role in Second Language Acquisition by discussing several factors that influencing second language learners’ study. the ways of training and improving students’ learning strategies