Two surveys by Marae-DigiPoll published on Sunday 19 October indicate Maori Party MPs would hold the seats of Waiariki and Te Tai Hauauru.
The Te Tai Hauauru poll puts Maori Party co-leader Tariana Turia on 78% support and Labour's Errol Mason on 15%.
The Maori Party also led the party vote in Te Tai Hauauru with 44% support compared with 42.5% for Labour.
In the Waiariki electorate, the poll has the Maori Party's Te Ururoa Flavell on 73% support, and Labour's Mita Ririnui on 22%.
In Waiariki, 49% of those surveyed said they would give their party vote to the Maori Party, while 34% chose Labour.
Both polls were carried out between 24 September and 14 October, and surveyed 400 people. The surveys have a margin of error of plus or minus 4.9 percentage points.
Earlier Marae-Digipoll surveys, published on 12 October. suggested the Maori Party was ahead in the Tamaki Makaurau and Te Tai Tokerau seats, which it won in the last election.
The three other Maori seats, Hauraki-Waikato, Ikaroa-Rawhiti and Te Tai Tonga, were won by Labour in the 2005 election.