According to Moises Llorens of AS, the Spanish veteran's representatives have sealed a move to the Chinese Super League for him at the end of the season, although it is not yet known which club he will join.
Wherever he ends up, Iniesta is expected to sign a three-year deal, Llorens added.
Now 33 years old, the Spain international has spent his entire senior career at Barcelona, making his debut in 2002 after joining the club's academy in 1996.
Iniesta is one of the most famed and respected graduates of Barca's La Masia academy.
He has won eight La Liga titles—with a ninth awaiting this season—four UEFA Champions Leagues and numerous other club trophies, while he is also a FIFA World Cup winner and double UEFA European Championship winner.
Along with Xavi, he was part of arguably the best midfield pairing in the world in the 2000s and early 2010s.
However, he now looks set to follow in his compatriot's footsteps by leaving Barca to play out his career elsewhere—Xavi joined Qatari side Al Sadd in 2015.