New Zealand were upset 22-0 in their opening match against the USA before beating Spain 55-0.
The All Blacks sevens had to win their match against Australia to avoid missing the cup quarters in Cape Town for the first time.
New Zealand made a great start to the match, dominating possession and territory to run in three unanswered tries in the first half.
However, Australia fought their way back into the match with two tries in three minutes at the start of the second spell to get themselves within nine points of New Zealand.
