The former Porto midfielder acknowledges the strength in depth of the French champions but is determined to seal all three points on Sunday
Claudio Ranieri's side head into the game two points clear of the reigning champions after five matches, but Moutinho has warned of the danger posed by Laurent Blanc's outfit as they prepare to lock horns at Parc des Princes.
"Paris is obviously our main competitor in the championship. This is a team already formed with great players who have known [each other] for one or two years," the 27-year-old was quoted as saying by Le Parisien.
"I also faced most of them last year in the Champions League with Porto. I know their value. But we do not have to be ashamed."
Moutinho joined the principality club from Porto during the summer for a reported €25 million (£22m).