- Conserve, develop, manage, display, and undertake research into, collections of Western Australian and other flora.
- Enhance and promote the understanding and conservation of the biological diversity of the designated land and of biological diversity generally.
- Undertake and promote research and investigation into matters related to or connected with the Authority's functions.
These objectives reflect the specific functions of the Botanic Gardens and Parks Authority Act 1998 and are undertaken with an emphasis towards science-related matters. Research is focused in the key areas of restoration ecology, seed science, conservation genetics, conservation biotechnology, orchid conservation, and systematics, with a focus on extension to practitioners and land managers.