Phytochemical investigation on the leaves of Ilex hainanensisMerr. led to the isolation of four new ursane- and oleanane-based triterpenoids, ilexhainanins A–D (1–4), as well as two known compounds, 2α,3β,19α-trihydroxyurs-12-ene-23,28-dioic acid and 2α,3β,19α-trihydroxyolean-12-ene-23,28-dioic acid. Their structures were elucidated on the basis of chemical and spectroscopic evidence, and by comparison with literature data.