Ochrosia ellipticaLabill is a small tropical evergreen tree native to Oceania belonging to the Apocynaceae family. Eight alkaloids, two flavonoid glycosides and three phenolic acids were identified by LC/MS analysis. On the other hand, the quality and uniformity of the plant leaves were assessed through the determination of the total phenolic and flavonoid, in addition to total ash, acid-insoluble ash, water-soluble ash and moisture content. The total ethanolic and aqueous extracts of the leaves ofO. ellipticaas well as their fractions were investigated for their antinociceptive (analgesic) using tail-flick test and antimicrobial activities using agar well diffusion assay. Among the tested fractions, the results showed that then-butanol fraction exhibited high potency as antinociceptive compared to indomethacin drug and as antifungal compared to amphotericin B.