SEA Games champion Dao Hong Son defended his title, earning his third gold in a row in the men's 56kg class, while former world champion Phung Thi Hue also met no challenge to triumph in the women's 45kg category.
In addition to the nearly two dozen gold medals, the Vietnamese fighters also claimed 15 silvers and 13 bronzes.
Hosts Thailand came second in the medal tally, followed by Palestine.
This year's JJIF World Cup Beach tournament took place from September 26 to 29 at Jomtien Beach in Pattaya, Thailand.
International martial artists competed in men's and women's individual and team events for adults and juniors in different weight categories, ranging from under 40kg to under 94kg.
