The midfield veteran will remain with the Serie A champion for two more seasons after committing his future to the club ahead of the World Cup.
The 35-year-old is preparing to star at the World Cup with Italy, but has reached an agreement with the Bianconeri that extends his association with the Serie A champions until 2016.
Pirlo arrived at Juventus Stadium in May 2011 after being released by AC Milan, and has gone on to enjoy something of an Indian summer in the latter stages of an illustrious career.
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The former Inter and Brescia man has made 131 appearances for the club and lifted the Serie A title in each of the last three seasons, as well as adding two Italian Super Cups to his resume.
Last season, Pirlo was again one of Juve boss Antonio Conte's star men, scoring eight goals in all competitions and weighing in with six assists for his teammates.
Perhaps most impressive is a pass completion rate of close to 90 percent across three seasons at the club, revealed in stats released on the Juve's official website.
Pirlo will be one of the first names on the team sheet when Italy takes on England in their World Cup opener in Brazil on Saturday night.