Mealamu, who started all three Tests in New Zealand's 3-0 series win against the British & Irish Lions in 2005, is confident there will be no repeat of previous end-of-year struggles against England and Ireland.
Yet the 35-year-old admits his side will need to show their prowess at the breakdown if he is to enjoy a victorious return to the Millennium Stadium where he won his first cap in 2002.
"We are excited to be in Cardiff and for the game, and we are looking forward to preparing well as there is a really good feeling in the team," he said.
"Everyone is feeling pretty good, and there is good competition in the team and everyone wants to play on the weekend. No-one wants to be in the stand for this one, and that is driving everyone.
"Part of the game they do well up here is contest the breakdown.
"As All Black forwards, it is a constant work-on for us, and we have to make sure we keep improving.
"It is a vital part of our game, and if we nail it well it sets our team alight. We need to do better there and we realise that. We will make sure we put in the work this week.
"The lucky few who get the opportunity must make sure they do a good job. I made my Test debut in Cardiff, and I have amazing memories from that day."