Ardie Savea and Sam Whitelock are notable names on the bench.
"Our aim is to win the next two pool matches against Canada and Namibia, as well as continuing to grow our game and manage the workload across the group. With two games four days apart, it's obvious that we need to use our whole squad," said Hansen.
"Whilst there's a huge amount of energy and excitement amongst the whole team about what lies ahead, this week there has been a real focus on ourselves and our own standards," Hansen added.
"We've been working hard. We know we have to keep growing our game. We've always been demanding of ourselves when it comes to continued improvement, and that will never change. By doing so, it allows us to have the right attitude, intent and execution.
"When it comes to our preparation, it should never be about who we are playing, but how we are preparing individually and as a team, both mentally and physically. By doing this, it means you always respect your opponent and the jersey."
Canada lost their opener 48-7 to Italy.
Kickoff is at 11.15pm on Wednesday.
The All Blacks team to face Canada:
15. Beauden Barrett, 14. Jordie Barrett, 13. Jack Goodhue, 12. Sonny Bill Williams, 11. Rieko Ioane, 10. Richie Mo'unga, 9. TJ Perenara, 8. Kieran Read (c), 7. Matt Todd, 6. Shannon Frizell, 5. Scott Barrett, 4. Patrick Tuipulotu, 3. Angus Ta'avao, 2. Liam Coltman, 1. Atu Moli.
Reserves:
16. Codie Taylor, 17. Ofa Tuungafasi, 18. Nepo Laulala, 19. Sam Whitelock, 20. Ardie Savea, 21. Brad Weber, 22. Ryan Crotty, 23. Ben Smith
