The Jillaroos shut out arch-rivals the Kiwi Ferns 14-0 in Christchurch on Sunday to punch their ticket to the Pacific Cup final on November 10.
Australia will take plenty of confidence into the decider after exacting revenge for a 12-6 loss in last year's final, but an arm injury to hooker Olivia Higgins could be a concern for Brad Donald's side.
Despite having 60 per cent of the ball in the opening 12 minutes the Kiwi Ferns were unable to crack the Jillaroos and when Australia got their chance inside the red zone it was Millie Elliott getting over the line twice only to be held up on both occasions.
The Jillaroos continued to mount pressure but poor last-tackle kicks by Tarryn Aiken and Ali Brigginshaw allowed the home side to come away.
A dropped ball by debutant Alexis Tauaneai coming out of her own end in the 24th minute put the Kiwi Ferns under the pump but Tiana Davison came up with strong defence on Higgins to force the ball loose.
With four minutes remaining in the half it was Aiken earning a repeat set with a neat grubber and the Jillaroos broke the deadlock when Tiana Penitani took a short ball from Brigginshaw and powered past Gayle Broughton and Amber Hall to score. Aiken missed the conversion and the Jillaroos took a 4-0 lead to the break.
Both sides traded errors in the opening sets of the second half before the Jillaroos came up with a sweeping movement that went through nine sets of hands before Simaima Taufa was denied on the line by desperate Annessa Biddle defence.
Late contact by Keilee Joseph on Broughton after a kick gave the Ferns a great shot at points but the opportunity was lost when Tauaneai put the ball down early in the set.
With 19 minutes to play, Jilaroos fullback Tamika Upton stamped her class on the match with a huge left foot step to bust the line and plant the ball down to make it 10-0 with Aiken's conversion.
Four minutes later the Jillaroos struck again when a brilliant offload by Boyle put Upton into space and Jess Sergis scored from the ensuing play as the Ferns defence failed to recover.
From there the Jillaroos were able to control proceedings through to full-time and now ser sail towards the Cup final at CommBank Stadium in two weeks' time.
A win for the Kiwi Ferns over the Kumuls in Port Moresby next week will give them another shot at the Jillaroos in the final.