A majority of voters support changing the law to allow gay couples to adopt children, according to the latest Herald-DigiPoll survey.
Labour and the Greens have pushed the rights of gay people as an election issue, but the National Party has sidelined them as not a priority.
Adoption in New Zealand is governed by the Adoption Act 1955, and Labour and the Greens say the law needs of an update.
More than half - 54.3 per cent - of the poll respondents said the law should be changed to allow gay couples to adopt children, 38 per cent disagreed, and 7.7 per cent did not know or refused to answer.
The result is the reverse of an online poll on the Herald website in 2009, when 41 per cent of 7000 voters were in favour of gay adoption, and 59 per cent were against it.