作者：Xiaolu Fan
　　【Abstract】With the increasingly emphasizing on psychology and the thriving of second language acquisition，there is a growing understanding of the importance of affective factors in second language learning. As a fundamental role in human life， emotion play a significant role in second language learning. It has been thoroughly clarified by theories that language teaching should focus on students’ all round development， which means to integrate their cognitive and affective elements. In fact， however， there are increasing number of students and teachers who focus on the effect of cognition instead of that of affect， which might contribute partly to passable English teaching and learning effect. Based on Krashen’s affective filter theory， this paper attempts to analyse the current situational problems of Chinses language teaching so as to enhance the foreign language teaching level.
　　【Key word】second language learning； language teaching； affective elements Krashen’s； affective filter theory
　　【作者簡介】Xiaolu Fan（1995-）， Female， now is studying for a master’s degree in International Education at the University of Bath， UK. Research direction： international education and globalization.
　　1. The definition and importance of affective filter theory
　　To establish the importance of affective factors in second language learning， it is necessary to introduce definition of affective filter theory. For the purpose of reducing learners’ negative emotion and fear of difficulties， Stephen Krashen （1982），， an excellent professor at University of Southern California indicates that， language teachers should create a more relaxing and effective teaching environment， where students can correct mentalities and build self-confidence for language learning. In the affective filter theory， Krashen regards the negative emotion as a filter which impedes the input that learners can understand between the teachers and learners.
　　It is thought that， the affective filter may have been an important factor in second language acquisition. Many researchers has stressed the importance of affective filter thesis. For example， Arag?o （2011） explains the significance of affective filter thesis with two reasons. Firstly， the emotion statement is one part of normal activities that cannot be ignored. Secondly， affective factors may contribute to both language learning and language teaching， which seem to decide the comprehensive development of students. The next chapter described Chinese current educational situation and reasons why that happened.