MMP is safe, according to a poll which tested opinion on the electoral system ahead of next year's referendum.
TV One's Colmar Brunton poll, released tonight, showed 50 per cent in favour of keeping it with 41 per cent opposed and 9 per cent who haven't made up their minds.
It was the third Colmar Brunton poll in the last five years showing a majority want to retain MMP.
The referendum will be held at the same time as the general election.
It will ask voters whether they want to retain MMP and to choose an alternative from a list of options which will include the old first-past-the-post system.