In the past three decades,the study of foreign language anxiety has attracted the attention of an increasing number of researchers and language teachers.Studies in a variety of language learning contexts have found that approximately one-third of students studying a foreign language experience at least a moderate level of foreign language anxiety.Research has also reported various types of negative effects of foreign language anxiety on foreign language learning.Since foreign language anxiety is not only prevalent among language learners,but appears to interfere with language learning,it must be taken seriously in all types of language instruction.Most language teachers are interested in the causes of foreign language anxiety so that they can create more comfortable language learning environments.Although sources of foreign language anxiety have been identified here and there across the literature,there has not been a systematic and comprehensive report of all the sources.This paper attempts to propose a four-dimension source model of foreign language anxiety based on a thorough literature review and the researcher’ s own insights. In the past three decades, the study of foreign language anxiety has attracted the attention of an increasing number of researchers and language teachers.Studies in a variety of language learning contexts have found that approximately one-third of students studying a foreign language experience at least a moderate level of foreign language anxiety. Research has also reported various types of negative effects of foreign language anxiety on foreign language learning.Since foreign language anxiety is not only prevalent among language learners, but appears to interfere with language learning, it must be taken seriously in all types of language instruction.Most language teachers are interested in the causes of foreign language anxiety so that they can create more comfortable language learning environments. Though sources of foreign language anxiety have been identified here and there across the literature, there has not been a systematic and comprehensive report of all the sources.This paper at tempts to propose a four-dimension source model of foreign language anxiety based on a thorough literature review and the researcher ’s own insights.