Saints have enjoyed a solid start to their second season back in the Premier League, sitting sixth after an opening-day win at West Brom and 1-1 draw with Sunderland.
The south-coast side secured another away win on Tuesday, beating Sky Bet Championship side Barnsley 5-1 in the Capital One Cup second round.
Norwich will prove a much sterner test this weekend and, while they have only taken one point so far this term, Pochettino knows what to expect.
"It's going to be a complicated game away in their stadium," the Argentinian said.
"They have reinforced their squad very well, so we're expecting a very tough game against them.
"They're physically a very strong side and a very quick side. They go on the counter-attack very quickly as well which is one of their main strengths .
"They're very well organised, and they know exactly what they need to do in every single moment of the game, so overall they're a very tough side playing against them away from home.
"Winning always makes us happy and content, so our goal is basically to play as well as we can to try to get a victory this weekend."