Essentials of the Golden Cabinet (Jingui Yaolue) embodies ancient physicians' wisdom, and its metaphorical language is very rich in connotations and fits in well with medical principles. This paper analyzes main types of metaphors in this book, such as natural metaphors, war metaphors, container metaphors, emotional metaphors and so on. Case studies are introduced to probe into different translation methods for metaphors such as transference, substitution, metaphrase and paraphrase.