The Portuguese participating broadcaster, Rádio e Televisão de Portugal (RTP), organised the national final Festival da Canção 2024 in order to select its entry for the contest.

Portugal was drawn to compete in the first semi-final of the Eurovision Song Contest which took place on 7 May 2024 and was later selected to perform in position 14.

Its least successful result had been last place, which it had achieved on four occasions, most recently in 2018 with the song "O jardim" performed by Cláudia Pascoal.

RTP confirmed its participation in the 2024 contest on 7 August 2023, announcing the organization of the 58th Festival da Canção in order to select its 2024 entry.

[2] The 58th edition of Festival da Canção took place between February and March 2024 at the RTP studios in Lisbon and featured 20 acts competing over two semi-finals and a final.

[13][14] The semi-finals took place on 24 February and 2 March 2024,[15][16] the first hosted by Tânia Ribas de Oliveira and José Carlos Malato and the second by Sónia Araújo and Jorge Gabriel.

[3] The jury consisted of Gisela João, Benjamim, Lia Pereira, Miguel Esteves Cardoso, Lura, Pedro Oliveira and Mimicat.

[43] The Portuguese jury consisted of Joaquim Albergaria, Inês Henriques, Edmundo Inácio, Rafaela e Ribas dos Santos da Silva Rodrigues, and Patrícia Silveira.

Over the course of the contest, Portugal awarded its 12 points to Ukraine in the first semi-final, and to Switzerland (jury) and Israel (televote) in the final.

[45][46] RTP appointed Mimicat, who represented Portugal in 2023, as its spokesperson to announce the Portuguese jury's votes in the final.

Each participating broadcaster assembles a five-member jury panel consisting of music industry professionals who are citizens of the country they represent.

[48] The individual rankings of each jury member as well as the nation's televoting results were released shortly after the grand final.