San Marino has participated in the Junior Eurovision Song Contest on three occasions, in 2013, 2014 and 2015.
The best placing that San Marino reached in the Junior Eurovision Song Contest was a 10th place in their debut with Michele Perniola's O-o-O Sole intorno a me. Michele went on to represent San Marino also in the Eurovision Song Contest in 2015 alongside Anita Simoncini, who participated in Junior in 2014 as part of The Peppermints.