Diterpenoids are important chemical constituents isolated from the genus Illicium, which possess many pharmacological effects such as anti-inflammatory, antiviral activities, cytotoxicity, and so on.Up to now, 68 diterpenoids have been isolated from the genus Illicium, and they are classified as abietane-type, pimarane-type and podocarpane-type.In this paper, the chemical constituents and bioactivities of the diterpenoids from the genus Illicium are reviewed.