Overseas studies on dialogic teaching have attracted ongoing attention from researchers in such fields as education,linguistics and educational psychology for over half a century.Based on an overview of documents on dialogic teaching abroad,it is found that dialogic teaching is mainly influenced by Vygotsky's sociocultural theory and Bakhtin's dialogue theory;its related research topics cover features,effects and factors impacting dialogic teaching as well as teacher development;its research methods have undergone a shift from quantitative methods to qualitative methods.Future research foci ar...