Switzerland was represented at the Eurovision Song Contest 1984 with the song "", written by , and performed by the group . The Swiss participating broadcaster, the Swiss Broadcasting Corporation (SRG SSR), selected its entry for the contest through a national final.
The Swiss Broadcasting Corporation (SRG SSR) held a national final to select its entry for the Eurovision Song Contest 1984. The national final was a collaboration between three broadcasters that comprised SRG SSR: the Swiss-German and Romansh broadcaster (SF DRS), the Swiss-French broadcaster (TSR), and the Swiss-Italian broadcaster (TSI). Since 1982, unlike previous Swiss national finals, where all composite broadcasters internally selected their entries, a public preliminary round was held by one of the regional broadcasters. SF DRS held a preselection to select its three entries, while TSR and TSI internally selected their entries. Eligible songs were required to have been composed by songwriters from Switzerland or Liechtenstein, and the deadline for the song registrations for the Swiss-German and Swiss-Italian broadcasters was on 15 October, 1983, whereas the deadline for the Swiss-French broadcaster was on 30 October.
A total of 114 songs were submitted to SF DRS. An internal jury was tasked to select at most 20 entries for the preliminary round, and ultimately selected 16 songs. The preselection was held on 17 December 1983 and was hosted by . The show was broadcast only on radio at 19:30 (CET) on DRS 1. The voting consisted of phone calls from radio listeners and the three radio stations of SF DRS (DRS 1, DRS 2 Kultur, and DRS 3) with an equal voting weight. The three highest scoring songs advanced to the national final in Lugano.
Of the sixteen songs, only fourteen of the participants are known to be reported, meaning two artists remain unknown. Additionally, it was reported that Bernadette received a low score. Known information regarding the lineup of this preliminary round is listed as follows.
=== === The broadcaster received 206 total song submissions (114 in German and 46 in French and Italian), and ultimately selected nine to take part in the selection (three per language). Among the participants were Arlette Zola, who represented , and Carol Rich, who would later represent .
Swiss Italian broadcaster (TSI) staged the national final on 4 February at 21:00 CET at its studios in Lugano. It was hosted by and Natascha Giller, with Mario Robbiani accompanying the orchestra. The national final was broadcast on TV DRS (with commentary by ), TSR (with commentary by ) and on TSI. Corinne Hermès, who won Eurovision for , made a guest appearance.
The voting consisted of a public jury combined from the regional public votes which were sent from the three divisions of SRG SSR (DRS, TSR, TSI: German, French, and Italian speaking, respectively), a press jury, and a jury of music experts. Applications for viewers from Switzerland and Liechtenstein to join the regional juries were sent via postcard until 23 January, and 50 viewers from each canton were randomly selected to cast their votes to their broadcaster divisions via phone call. The winner was the song "", written by and performed by .
At the Eurovision Song Contest 1984, held at the in Luxembourg City, the Swiss entry was the seventeenth entry of the night following and preceding . The Swiss conductor at the contest was Mario Robbiani, who previously composed and conducted several Swiss-Italian songs in the contest. At the close of voting, Switzerland had received 30 points, placing Switzerland in sixteenth place out of nineteenth entries.
Each participating broadcaster assembled a jury panel with at least eleven members. The jurors awarded 1-8, 10, and 12 points to their top ten songs.