Dane Coles came off the bench to score four tries as New Zealand saw off a spirited Fiji in Dunedin.
The All Blacks were expecting a much stiffer contest than in their 102-0 romp against a weakened Tonga side last week and the Fijians delivered with a physical challenge their hosts struggled to contain at times.
While a home win never really looked in doubt, five-pointers for the Fijians from Albert Tuisue and Mesulame Kunavula as well as a penalty try will give New Zealand coach Ian Foster much to ponder ahead of next week's second Test in Hamilton.
The All Blacks ran in nine tries in total, including three in the last 15 minutes as their opponents tired, but still posted their lowest tally in six Tests against the Fijians going back to 1987.
"Fiji brought a lot of intensity and probably showed us an intensity we needed to (match) in the second half," said New Zealand skipper Aaron Smith.
"We knew it was going to be a different beast this week. They've got some quality players and I think both teams will take a lot out of this. Bring on next week, it's going to be awesome."
The All Blacks led 21-6 at the end of the first quarter after full-back Jordie Barrett opened their account and David Havili marked his return to Test rugby with two tries from inside centre.
The Fijians, inspired by flanker Johnny Dyer and skipper Levani Botia, then stepped up a gear and started dominating the tackle area.
They got their reward when No 8 Albert Tuisue crashed over for a try in the 28th minute after a catch-and-drive and were trailing only 21-11 at half-time.
All Blacks winger George Bridge crossed for New Zealand's fifth try four minutes into the second half but flanker Mesulame Kunavula quickly responded for the visitors after a trick play from another attacking lineout.
Fiji full-back Kini Murimurivalu was yellow-carded for a ruck infringement in the 52nd minute and the All Blacks immediately rolled a maul over the try line with Coles coming up with the ball. The Pacific islanders hit back again just after the hour mark when New Zealand brought down their rolling maul close to the line and the referee awarded a penalty try and sent Havili to the sin bin.
In the last 15 minutes, Coles rode the New Zealand maul to two more tries and grabbed another at the end of a flowing move, while replacement back Will Jordan added another to his Test tally after crossing five times last week against Tonga.