Djokovic hired the former world number one ahead of the 2014 season in what was widely seen as a surprising move, but critics were silenced as the Serbian won six grand slam titles and dominated the sport.
Announcing the news on his Facebook page, Djokovic said: " After three very successful years, Boris Becker and I have jointly decided to end our cooperation
"The goals we set when we started working together have been completely fulfilled, and I want to thank him for the cooperation, teamwork, dedication and commitment.
Norrie has sights on ATP Finals after 'biggest win' at Indian Wells
"On the other hand, my professional plans are now directed primarily to maintain a good level of play, and also to make a good schedule and new goals for the next season. In this regard I will make all future decisions."
'Biggest match of my career again' - Norrie ahead of Indian Wells final
Norrie dominates Dimitrov 6-2 6-4 to reach Indian Wells Open final