The participation of Portugal in the Junior Eurovision Song Contest first began at the Junior Eurovision Song Contest in 2006 which took place in Bucharest, Romania. Rádio e Televisão de Portugal (RTP), a member of the European Broadcasting Union (EBU), were responsible for the selection process of their participation. Portugal used a national selection format, broadcasting a show entitled "Festival da Canção Junior", for their participation at the contests. This was a junior version of Festival da Canção, the national music competition organised by broadcaster RTP to choose the Portuguese entry for the Eurovision Song Contest. The first representative to participate for the nation at the 2006 contest was Pedro Madeira with the song "Deixa-me sentir", which finished in second-last place out of fifteen participating entries, achieving a score of twenty-two points. Their worst result to date has been achieved by Rita Laranjeira with her song "Gosto de tudo " in the Junior Eurovision Song Contest 2018 where she placed 18th. Portugal withdrew from competing in 2008, and returned in 2017. They withdrew again in 2020 due to the COVID-19 pandemic. Portugal returned in 2021, where they achieved 11th place, their best result up to that point. In 2022 the country surpassed this record and reached 8th place.
The Junior Eurovision Song Contest 2017 was the fifteenth edition of the annual Junior Eurovision Song Contest, organised by the Georgian Public Broadcaster (GPB) and the European Broadcasting Union (EBU). It took place on 26 November 2017 at the Olympic Palace, in the Georgian capital, Tbilisi. This was the fifth time that the contest was hosted by the previous year's winning country. The visual design and contest slogan, "Shine Bright", were revealed in May 2017.
On 9 August, the European Broadcasting Union (EBU) announced that Portugal would participate in the Junior Eurovision Song Contest 2017 in Tbilisi, Georgia. This was the first time that Portugal has participated in the contest since 2007, with Portuguese broadcaster Rádio e Televisão de Portugal (RTP) being responsible for the selection of their participant.
Portugal participated in the Junior Eurovision Song Contest 2018 which took place on 25 November 2018 in Minsk, Belarus. The Portuguese broadcaster Rádio e Televisão de Portugal (RTP) was responsible for organising their entry for the contest.
Armenia participated in the Junior Eurovision Song Contest 2019, held in Gliwice, Poland on 24 November 2019. The Armenian broadcaster Armenian Public Television (ARMTV) was responsible for organising their entry for the contest. Karina Ignatyan was chosen with her song "Colours of Your Dream".
Kazakhstan announced on 18 July 2019 that they would participate at the seventeenth Junior Eurovision Song Contest to be held in Gliwice, Poland. The Kazakh broadcaster, Khabar Agency (KA), was responsible for the country's participation in the contest.
Georgia took part in the Junior Eurovision Song Contest 2019, which was held on 24 November 2019 in Gliwice, Poland.
The Netherlands participated in the Junior Eurovision Song Contest 2019 which was held on 24 November 2019 in Gliwice, Poland. Matheu was selected with his song "Dans met Jou". Their entry was selected through the national selection Junior Songfestival 2019.
Portugal originally planned to participate in the Eurovision Song Contest 2020 with the song "Medo de sentir" written by Marta Carvalho. The song was performed by Elisa. The Portuguese broadcaster Rádio e Televisão de Portugal (RTP) organised the national final Festival da Canção 2020 in order to select the Portuguese entry for the 2020 contest in Rotterdam, Netherlands. After two semi-finals and a final which took place in February and March 2020, "Medo de sentir" performed by Elisa emerged as the winner after achieving the highest score following the combination of votes from seven regional juries and a public televote.
Albania participated in the Junior Eurovision Song Contest 2019 with the song "Mikja ime fëmijëri" written by Saimir Çili and Jorgo Papingji. The song was performed by Isea Çili. The Albanian entry for the 2019 contest in Gliwice, Poland was selected through a national final organised by the Albanian broadcaster Radio Televizioni Shqiptar (RTSH). The national final consisted of eighteen competing acts participating in a televised production where the winner was determined by 100% votes of jury members made up of music professionals. Isea Çili won the Junior Fest 2019 with the song "Mikja ime fëmijëri", on 29 September 2019.
Russia participated in the Junior Eurovision Song Contest 2019 which took place on 24 November 2019 in Gliwice, Poland. The Russian broadcaster All-Russia State Television and Radio Broadcasting Company (VGTRK) was responsible for organising their entry for the contest. Tatyana Mezhentseva and Denberel Oorzhak won the national final on 24 September 2019 with the song "Vremya dlya nas". The Russian organisation team later opted to change the name of the song to "A Time for Us".
North Macedonia participated in the Junior Eurovision Song Contest 2019 which took place on 24 November 2019 in Gliwice, Poland. The national broadcaster MRT was responsible for organising North Macedonia's entry for the contest. On 9 July 2019, Mila Moskov was internally selected as the Macedonian representative.
Malta participated in the Junior Eurovision Song Contest 2019 held in Gliwice, Poland. Their entrant was selected through a national selection, organised by the Maltese broadcaster Public Broadcasting Services (PBS) on 20 August 2019.
Italy participated in the Junior Eurovision Song Contest 2019 which took place on 24 November 2019 in Gliwice, Poland. The Italian broadcaster Rai Gulp, which is a channel owned by Radiotelevisione Italiana (RAI), was responsible for organising their entry for the contest. Marta Viola was internally selected to represent Italy with the song "La voce della terra".
The Netherlands participated in the Junior Eurovision Song Contest 2020 which was held on 29 November 2020 in Warsaw, Poland. The girl group Unity was selected by AVROTROS to represent the country through the televised national selection Junior Songfestival 2020. They achieved 4th place with 132 points.
Ukraine participated in the Junior Eurovision Song Contest 2020, which was held in Warsaw, Poland, with the song "Vidkryvai" performed by Oleksandr Balabanov. Their entrant was selected through a national selection, organised by the Ukrainian broadcaster UA:PBC.
Portugal competed in the Junior Eurovision Song Contest 2021 in Paris, France, on 19 December. Portuguese broadcaster RTP is responsible for the participation, and selected Simão Oliveira to represent the country, after he won the second season of The Voice Kids Portugal.
Portugal participated in the Eurovision Song Contest 2022 in Turin, Italy, with "Saudade, saudade" performed by Maro. The Portuguese broadcaster Rádio e Televisão de Portugal (RTP) organised the national final Festival da Canção2022 in order to select the Portuguese entry for the 2022 contest. After two semi-finals and a final which took place in March 2022, "Saudade, saudade" performed by Maro emerged as the winner after achieving the highest score following the combination of votes from seven regional juries and a public televote.
Portugal competed in the Junior Eurovision Song Contest 2022 in Armenia, which was held on 11 December 2022 in Yerevan. Portuguese broadcaster RTP is responsible for the participation, and selected Nicolas Alves to represent the country, after being the runner-up on the third season of The Voice Kids, due to the actual winner Maria Gil having been born in November 2007.
Portugal participated in the Eurovision Song Contest 2023 in Liverpool with "Ai coração" performed by Mimicat. The Portuguese broadcaster Rádio e Televisão de Portugal (RTP) organised the national final Festival da Canção 2023 in order to select the Portuguese entry for the 2023 contest. After two semi-finals and a final which took place in February–March 2023, "Ai coração" emerged as the winner after achieving the highest score following the combination of votes from seven regional juries and a public televote.
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