Many studies have been devoted to the E-C translation of business contracts, but there is still too much to be desired owing to the lack of a guiding theory. In this article, the author has a try to employ Nida’s functional equivalence theory to direct this kind of translation. Many studies have been devoted to the EC translation of business contracts, but there is still too much to be desirable owing to the lack of a guiding theory. In this article, the author has a try to employ Nida’s functional equivalence theory to direct this kind of translation