The Dutch pairing of Michael van Gerwen and Raymond van Barneveld were the reigning champions, after beating the Scottish duo Peter Wright and Gary Anderson 3–1 in the 2018 final.

Wright and Anderson of Scotland won their first World Cup, defeating the Republic of Ireland team of William O'Connor and Steve Lennon 3–1 in the final.

If necessary, one or two best of seven legs singles matches in reverse order are played to determine the champion.

[3] The prize money will be per team: The competing nations were confirmed on 29 March, with the only change from 2018 being the Philippines replacing Thailand.

[5] On 5 June, it was confirmed that China's Qingyu Zhan was to be replaced by Yuanjun Liu due to a passport issue.

[6] The Top 8 nations based on combined Order of Merit rankings on 12 May were seeded.