They claimed a comprehensive 45-12 win over the USA in this morning's semifinal in Dublin.
Portia Woodman scored four tries as the New Zealanders proved too strong after the break.
It had been a tight affair early on, the Black Ferns taking a 15-7 lead to halftime.
However the floodgates opened in the second half.
Others to score tries were first five-eighth Victoria Subritzky-Nafatali, reserve hooker Te Kura Ngata-Aerengamate and second five-eighth Kelly Brazier.