Acorus calamus is a commonly used clinically aromatic medicine for resuscitation.It is widely used because of its rich chemical composition and powerful pharmacological action.Its chemical composition is complex,mainly including volatile oils,flavonoids,alkaloids,quinones and organic acids.This article reviews and summarizes the effective ingredients and antidepressant mechanism of Acorus calamus,in order to provide a scientific theoretical basis for the study of Acorus calamus's chemical composition and medicinal value.