The Blues return to the Champions League after spending last season without European football.
And the Italian manager believes the match will provide a good test for the reigning English champions.
“Atletico Madrid is a really good team with great experience in this competition,” said Conte. “Their last few years, they always have a great Champions League.
“To reach the final of the Champions League twice is not simple, it means you are strong. For sure, we must pay great attention.
“Chelsea last season didn’t play this competition. For this reason, we are excited to play but for sure tomorrow, we know very well that we have to face a really good team.
“For us, it’s very important to play this type of game – away against one of the best teams in the Champions League.
“I think it’s the right moment also to understand where we are.”