The 27-year-old has been linked with Manchester United this season but claims that it would be foolish to consider moving away from Turin following the club's recent success.
Marchisio told Mediaset: "I have a long contract with Juventus and I want to see it out and renew it even.
"It would be crazy to leave now that we have just started winning. I am not interested in the rumours even though they fill me with pride."
Marchisio has played 32 times for the Italian national side.