The 44-year-old is renowned for his dedication and commitment and Rummenigge believes he's an example for all to follow.
"Guardiola works incredibly hard. He is more German than the Germans when it comes to his work ethic," Rummenigge told Kicker.
"When the players have all long returned home and are relaxing on the sofa, Guardiola is still around and working on a masterplan for the next game."
The Bayern chief also had his say on Guardiola's future at the club, with the Catalan having been recently linked with a return to Barcelona.
"Guardiola will still be our coach next season," he added. "We believe in each other. I hope that Pep will remain at Bayern for a long time.
"He does not want to commit his future to Bayern at this stage, but he will stay here so long as he and his family feel well here.
"The coach is not a source of unrest at Bayern, but he is not the calmest person around either. He is determined to help the team to the next level on a permanent basis."
Guardiola took charge of Bayern in the summer of 2013 and led the Bavarians to a league-and-cup double in his first season at the helm.
