Eugene A.Nida’s functional equivalence theory is regarded as one of the most useful criteria.In this thesis,the author will make a research on the translation of idioms in Yu Hua’s novel Brothers from the perspective of Functional Equivalence Theory,which examines whether the English version achieves the equivalence of response between the source language readers and the target language readers. Eugene A. Nida’s functional equivalence theory is regarded as one of the most useful criteria. In thesis, the author will make a research on the translation of idioms in Yu Hua’s novel Brothers from the perspective of Functional Equivalence Theory, which examines whether the the English version achieves the equivalence of response between the source language readers and the target language readers.