Openers M J Bulow (50, 72 balls, 9x4) and eve of the match S Nitschike (81, 81 balls, 12x4, 1x6) set up the win with a 120-run stand in 22.4 overs as the Aussies overhauled the target with 70 balls to spare in a one-sided contest.
The Aussie bowlers did well to restrict their arch rivals to 177 for nine in 50 overs after the White Ferns chose to bat. The batswomen then continued the goodwork with the Aussies finishing at 181 for four in 38.2 overs to complete a facile win.
The exit of Bulow and K L Rolton (one) in the space of ten balls and K A Blackwell (three) later did not alter the outcome as eve-of-the-series and player of Indian origin L C Sthalekar (32 not out, 48 balls, 5x4) played the role of a finisher to perfection.
Earlier, tight bowling and good fielding helped the Aussies restrict their rivals to a small score. N J Brown, coming in at number eight, topscored for New Zealand with 41 (80 balls, 6x4).
New Zealand 177 for 9 in 50 overs (N J Browne 41,Haidi M Tiffen 33, Tsukigawa 39; K E Pike 3 for 21, Fitzpatrick 2 for 27, Simpson 1 for 29) lost to Australia 181 for 4 in 38.2 overs (Nitschke 81, Bulow 50, Lisa Sthalekar 32 n o; Tsukigawa 2 for 20, Bates 1 for 8) by 6 wickets. Australia retain the title