Juventus have failed to add to their tally of 27 Serie A titles since being stripped of their 2005 and 2006 Scudetti after the Calciopoli scandal, ending the previous two seasons in seventh place and out of European football contention.
However, the Bianconeri's fortunes have changed this season after Conte took over the reins, finishing the year joint-top of the table with AC Milan.
Marchisio believes that Conte is chiefly responsible for the club's improvement, hailing the former Juventus player's philosophy and mentality which he has brought to Juve.
He told Reuters: "Conte has brought a new mentality to the club. One of his merits has been to eliminate the fear which had unfortunately taken hold at the club after years of disappointing results."
"The boss knows what winning means and he brings that winning mindset to the club every day based on his own hard-working, committed character,"
Marchisio has been key in Juventus' fortunes so far this season, starting in 15 of 16 league matches and firing six goals from midfield. The native Turin midfielder believes that he has excelled under Conte's style of play.
He added: "I think the new system has helped bring out my best qualities,
"I've always thought of myself as a central midfielder with good technical abiltiy and a good engine. The boss' new style helps my game and I've been able this season to get between the opponents' defensive lines."
Juventus will kick off the new year against Lecce on 8 January.