The England star will now be available to face the ACT Brumbies on Friday.
"Danny's suspension will be lifted," read a statement on the club's website.
"He has returned to training. He will be available for selection in this week's game against the Brumbies."
Cipriani, who has not played for England since 2008, has been at the centre of controversy since making the switch 'down under' from Wasps.
He was fined after being ejected from a nightclub for taking a bottle of vodka from behind the bar but responded with a match-winning penalty in the Rebels' first-ever victory.
But Cipriani again hit the headlines when he was suspended for breaching a team curfew and did not travel with the Rebels squad for two Super 15 matches in South Africa.