Earls returned to training after missing the last six weeks with medial ligament damage to his left knee, an injury sustained in the Heineken Cup game against Edinburgh in January.
The squad resumed training after a week's break as preparations begin for the RaboDirect PRO12 clash against Treviso at Thomond Park on Saturday, March 22nd (ko 7:15pm).
Rob Penney's side will be keen to get back to winning ways against the Italians, who beat Munster earlier in the season, after the defeat to Scarlets in their last game.
That result, coupled with Leinster's win over Glasgow, saw Munster drop to second in the PRO12 table with just six league games remaining.
Hooker Niall Scannell also trained yesterday after recovering from a hyper-extension of his right elbow in training last month.
New-signing Quentin MacDonald trained with the squad for the first time after his arrival from New Zealand, the hooker played 60 minutes for Munster A against Connacht Eagles last week.
Click here for more details on Munster's final three home games in the RaboDirect PRO12 as they look to secure a play-off place.