Scotland were the defending champions, after defeating the Irish team of William O'Connor and Steve Lennon 3–1 in the 2019 final,[1][2] Peter Wright and Gary Anderson did not defend the title for Scotland this year, as both withdrew from taking part due to the COVID-19 pandemic, and were replaced by John Henderson and Robert Thornton, making Scotland the first defending champions of this tournament to be unseeded at the following tournament.

Wales, represented by Gerwyn Price and Jonny Clayton, won their first World Cup of Darts title by defeating the English team of Michael Smith and Rob Cross 3–0 in the final.

On 18 October, the Philippines expressed concerns due to logistics issue caused by COVID-19 travel restrictions, and have threatened to withdraw, but they were cleared to participate in the end.

[6] On 2 November, Singapore withdrew from the competition as Harith Lim couldn't fly to Austria, because of new regulations in Singapore (whereas his teammate Paul Lim was based in Hong Kong), so they were replaced by Portugal (represented by José de Sousa and José Marquês), while Kim Viljanen, Cristo Reyes and Xicheng Han of Finland, Spain and China respectively, were replaced by Veijo Viinikka, Jesús Noguera and Zizhao Zheng.

On the eve of the tournament, the Chinese team of Zizhao Zheng and Di Zhuang were forced to withdraw after issues with their flights to Austria, with standby team Latvia, represented by Madars Razma & Janis Mustafejevs, taking their spot.

The Top 8 nations based on combined Order of Merit rankings on 12 October will be seeded.