From a crude and distant perspective, the process of colonialism in New Zealand seems to have been less harmful to the Maori of New Zealand than it was to Indigenous Australians. Maori peoples have their own specific seats in New Zealand parliament, to my knowledge, and Maori cultural elements, like the Hakka, seem to be celebrated and major parts of wider New Zealand culture. What were the main reasons for this?
Not to forestall further answers on this topic, because there's definitely more to be said, because this is a big question! But there are some answers to similar questions on the subreddit:
Why were/are NZ Maoris treated far better than Aborigines in Australia? by /u/CrossyNZ, and
What historical reasons lead to the different treatment of Maori culture in New Zealand and Australia by /u/duckyfuzzfuzzyduck
By the way, there is disagreement about whether 'Aboriginal Australians' versus 'Indigenous Australians' is the best term, by the way, but 'Aborigine' is an...older usage that's not much favoured these days in Australia. Aboriginal people, whether they prefer 'Aboriginal' or 'indigenous' most of all like to be considered as people, and 'Aborigines' rather than 'Aboriginal people' has slightly too many echoes of the days when they weren't quite fully considered people. And of course, Aboriginal people were and are a very diverse group of people who had hundreds of different languages and cultures and lived in quite a diverse range of conditions (given that Australia is an entire continent with snowfields, deserts, and temperate harbours). As a result, ideally, Aboriginal Australians would probably prefer to be called, say, Koori or Noongar or Yorta Yorta, rather than 'Aboriginal Australians', in the way that an 'American Indian' might prefer to be called, say, Nez Perce, because that's the culture they actually identify as. There's a decent piece on what terms to use in an Australian newspaper, Crikey, here.
Also, when the Colonies of Australia merged to become the Commonwealth of Australia, the colony of New Zealand was part of these discussions and were expected to join. The New Zealand delegate refused to sign because of two issues, one, the issue of distance. The distance between New Zealand and Australia is huge. The second, was his concern about how aborigines were treated in Australia and how that would translate to the treatment of Maori. New Zealand had just been through some internal warfare with the Maori, and did not want to restart conflicts.
Also, though it was not common, in New Zealand, the original criteria for voting in elections was land ownership, so Maori could vote even in the early days of colonialism, though at first not many took advantage of this. Unlike Australia where Aborigine peoples were not even recognized as citizens until the late 20th century.