First it was New Zealand First, and now it's the Maori Party eyeing itself up as a potential 'kingmaker' in next year's election.

The Māori Party is hoping a new formal alliance between the Labour and Green Parties could send more voters its way.

The red-green agreement will see Labour and the Greens run joint campaigns and potentially run single candidates for some decisive electorate seats.

Māori Party president Naida Glavish said the realignment of political allegiances could create a vacuum for many Maori voters.

She said only an independent Māori Party can command a balance of power after the next election, and counter New Zealand First in any future government.

"Māori  must recognise that they need to come home, they need to come back to being Māori in the Māori Party which is the independent Māori voice in government," she claimed.

Glavish said the Māori Party is the only party willing to work with both blocks to achieve advances for Maori people, and will offset the anti-Treaty views of New Zealand First.

She says the party's two MPs have done far more to promote the Māori language, Māori land rights and Whanau Ora.

"Two people in government has achieved more than six members sitting in the Labour Party or even the Māori members who are sitting in the Greens."

Glavish said the Māori Party is willing to provide a Māori voice in any National or Labour government.