The White Ferns completed a 3-nil T20 series sweep of Bangladesh after a 63 run win in game three in Queenstown.
After deciding to bat first New Zealand made 152/7 with Sophie Devine and Amelia Kerr again leading the way.
Opener Devine made 47 off 33 balls, while in the middle order Kerr hit an unbeaten 48 off 31 balls.
Lea Tahuhu had a small cameo at the end of the innings with 17 runs from eight balls.
The wickets were shared among the Bangladesh bowlers.
In reply Bangladesh struggled to put any partnerships together with none of the top four batters reaching double figures, with Tahuhu taking the first three wickets.
Rumana Ahmed scored 25, while Salma Khatun was left 23 not out as the tourists finished on 89/7.
Tahuhu finished with three for 13 from her four overs, while spinner Eden Carson grabbed two for 19.
The two sides now play three ODI's.
The White Ferns will then head to the T20 World Cup in South Africa in February.