Nerang National Park is an open forest environment providing a habitat for lot of native and non-native animals.

Towards the centre of Nerang National Park is a small patch of critically endangered subtropical lowland rainforest, listed under the EPBC Act 1999.

There are several threatened fauna species that reside in Nerang National Park including the greater glider, koala, glossy black-cockatoo, Richmond birdwing butterfly, grey-headed flying fox, powerful owl, echidna, and tusked frog.

Conservation-significant flora known to occur in Nerang National Park include Rhodamnia rubescens, Rhodomyrtus psidioides, Cassia marksiana, Endiandra floydii, Endiandra hayesii, Macadamia integrifolia, Sophora fraseri, Randia moorei, Leichhardtia coronata, and Leichhardtia longiloba.

Two near threatened rainforest plant species are known to occur in the gullies and along the wetter creeks, Richmond birdwing butterfly vine and the long-leaved tuckeroo.