The aim of this article is to review the Maori research as the unique language and cultural identity of New Zealand. We have discovered that the most distinctive feature of New Zealand English as the national variety is the large number of Maori words and phrases related to indigenous Maori cultural traditions, many of which have become part of general New Zealand culture, as well as to the flora and fauna of New Zealand, along with place names. The article explores the Maori research in terms of language and language policy, historical, social, cultural and political background. In particular, we highlight significant advances made in the cultivation of cultural, educational and communicative value of the language and culture of Maori.