0301 GMT January 20, 2020
Cannavaro was temporarily stood down from managerial duties in late October to attend a "corporate culture class," BBC wrote.
The club's owners then decided to restore him as manager after he agreed to "deep self-reflection."
On Sunday, Guangzhou Evergrande beat second-bottom Shenhua 3-0 to secure the title.
Goalscorer Park Ji-soo celebrated his goal by running over to embrace Cannavaro.
Beijing Guoan was two points back in second place while Rafael Benitez's side Dalian Yifang finished ninth.
Cannavaro, Italy's World Cup-winning captain in 2006, had been criticized for his "weak ability to rectify mistakes and insufficiently strict handling of players" by his club.
He was also warned to work harder, improve the standard of his coaching staff, and "raise the players' overall fighting ability to win the Chinese Super League" again.