SMRTV attempted to participate in the contest in 2011 in Yerevan, Armenia. However, the broadcaster withdrew after appearing on the official list of participants, citing a failure to find a suitable entrant.[1] On 25 October 2013, SMRTV confirmed that it would make its debut in the contest in 2013 in Kyiv, Ukraine.[2] For its first appearance, SMRTV internally selected Michele Perniola to represent the country with "O-o-O Sole intorno a me", marking the first time since 2004 that the Italian language was on the stage of the Junior Eurovision Song Contest.[3] Ultimately, Perniola finished in tenth position in a field of twelve countries, marking San Marino's first top ten result in a Eurovision event.[4][5] SMRTV continued the internal selection process for the 2014 contest in Marsa, despite an initial delay in confirming participation.[6] On 26 September 2014, it was revealed that the Italian/Sammarinese girl band The Peppermints, would represent San Marino with the song "Breaking My Heart".[7] The group finished in fifteenth position in a field of sixteen with 21 points.[8] On 27 September 2015, SMRTV announced their third attempt for the 2015 contest in Sofia, Bulgaria. Initially, the broadcaster announced that it would organise a national selection entitled Vocine Nuove Castrocaro.[9] Ultimately, the selection was held privately and Kamilla Ismailova was selected to perform the song "Mirror".[10] Ismailova placed fourteenth in a field of seventeen entries with a total of 36 points, also placing ninth in the public televote. At the time, this marked San Marino's highest relative placing in a Eurovision event.[11] On 8 June 2016, SMRTV's head of delegation for the contest, Alessandro Capicchioni, welcomed the move of the junior event to a Sunday afternoon and revealed that the broadcaster would select a foreign representative for the 2016 contest should the country participate.[12] However, 0n 14 July 2016, SMRTV announced it would withdraw from the 2016 contest alongside Slovenia and Montenegro, with no reasons cited for the move.[13] San Marino remained absent for a further eight editions of the contest.
Despite initially confirming that the country would not return in 2024,[14] on 3 September 2024, San Marino appeared on the list of participating countries for the 2024 contest in Madrid, Spain.[15][16]Idols SM were internally selected to represent the country, and were announced as the selected group on 11 September 2024 during the charity event Sogna ragazzo sogna, broadcast on San Marino RTV.[17][18] "Come noi" was officially released as San Marino's entry on 5 October 2024.[19] The group placed last in a field of seventeen, scoring 47 points.[20] On 29 November 2024, SMRTV confirmed its participation in the 2025 contest.[21][22]
SMRTV sends their own commentator to each contest in order to provide commentary in the Italian language. Spokespersons have also chosen by the national broadcaster in order to announce the awarding points from San Marino. The table below lists the details of each commentator and spokesperson since the country's debut in 2013.