Mélanie Cohl

Prior to the 1998 contest, Belgium had participated in the Eurovision Song Contest forty times since its debut as one of seven countries to take part in 1956.Since then, they have won the contest on one occasion in 1986 with the song "J'aime la vie", performed by Sandra Kim. In 1996, the latest Belgian entry, "Liefde is een kaartspel" by Lisa del Bo placed sixteenth. The Belgian participation in the contest alternates between two broadcasters: Flemish Vlaamse Radio- en Televisieomroeporganisatie (VRT) and Walloon Radio-télévision belge de la Communauté française (RTBF) at the time, with both broadcasters sharing the broadcasting rights. Both broadcasters –and their predecessors– had selected the Belgian entry using national finals and internal selections in the past. RTBF had the turn to participate in 1998. The broadcaster returned to the contest after a two-year absence following Belgium's relegation from 1997 as one of the six countries with the least average points over the preceding four contests. RTBF selected its entry for the 1998 contest through the national final Finale Nationale Concours Eurovision de la Chanson 1998.

Finale Nationale Concours Eurovision de la Chanson 1998 was the national final organised by RTBF to select its entry in the Eurovision Song Contest 1998. 128 entries were received for the competition following a submission period, from which ten acts were selected by a committee chaired by Head of the RTBF variety and entertainment department Pierre Meyer and announced on 12 December 1997. The national final was broadcast live at 20:20 (CET) on 13 March 1998 on La Une from Studio 6 in the RTBF Studios in Brussels and was hosted by Jean-Pierre Hautier. The winner, "Dis oui" performed by Mélanie Cohl, was selected solely by public televoting with the results being revealed by Belgium's six regions: four provinces in Wallonia with votes from Namur and Luxembourg being combined, a "Rest of Belgium" region made up of votes from Flanders, and Brussels.

According to Eurovision rules, all nations with the exceptions of the eight countries which had obtained the lowest average number of points over the last five contests competed in the final on 9 May 1998. On 13 November 1997, an allocation draw was held which determined the running order and Belgium was set to perform in position 20, following the entry from Sweden and before the entry from Finland. Belgium finished in sixth place with 122 points. The contest was broadcast in Belgium by both the Walloon and Flemish broadcasters. RTBF televised the show on La Une with commentary in French by Jean-Pierre Hautier. VRT broadcast the show on TV1 and Radio 2 with commentary in Dutch by André Vermeulen and Andrea Croonenberghs. RTBF appointed Marie-Hélène Vanderborght as its spokesperson to announce the results of the Belgian televote during the final.

Below is a breakdown of points awarded to Belgium and awarded by Belgium in the contest. The nation awarded its 12 points in the contest to the Netherlands.