The systematic collection, safekeeping, documentation, scientific processing and presentation of natural history material primarily from the Dubrovnik region as well as education concerning the importance of preserving natural values and biological diversity, with particular reference to threatened species.

To become a reference institution in the network of Croatian natural history museums that with its influence will actively take part in the creation and advancement of museum practice and lay the foundations of excellence in the manner of managing a public museum institution, in concert with linkage with other scientific institutions and full involvement of citizens and the public.