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.

Rádio e Televisão de Portugal (RTP), a member of the European Broadcasting Union (EBU), was responsible for the selection process of participants.

This was a junior version of Festival da Canção, the national music competition organized by broadcaster RTP to choose the Portuguese entry for the Eurovision Song Contest.

[3] After Rita Laranjeira's selection, it was announced Portuguese broadcaster RTP had invited a composer to come forward with one or several songs that capture the essence of ”diversity, empathy and modernity”.

[7] João Só has previously competed as a songwriter in the Portuguese Eurovision selection Festival da Canção in both 2012 and 2016.

[8][9] In 2018, she participated in the MEO Kids Music Fest and Junior Eurovision Song Contest,[10] and in 2020 in The Voice Portugal.