Les Rouge-et-Bleu secured a 3-0 win away at Reims on Saturday, with Lucas Moura, Jeremy Menez and Zlatan Ibrahimovic all scoring, and moved seven points clear of Lille at the top of the table.
Matuidi, speaking in an interview with Le Parisien, declared that with his side's ability, experience and discipline the team has to be considered the favorite for the title.
"We have learned to be focused all the time," the 26-year-old said. "We are always 110 percent in all our games. With our technical quality, if we maintain this level of concentration and this state of mind, it will be hard to catch us.
"Technically, there is not much to say about our game. With our expertise and experience, we never panicked."
Matuidi has played 14 times and scored twice for les Parisiens in Ligue 1 this season, helping his side to maintaining a still-unbeaten league record.
PSG has 34 points from 14 games, seven ahead of Lille and eight ahead Monaco both of whom play on Sunday.