Widodo added that the championships was not merely a competition, but also a good moment to strengthen friendship and brotherhood among nations.
According to secretary general of the International Wushu Federation (IWUF), Zhang Qiuping, a record number of more than 800 athletes are to compete for 71 gold medals.
"I can feel all of the young athletes are very enthusiastic to eventually be able to participate in this competition in person," Zhang said in a press conference preceding the opening ceremony.
Indonesia, as the host country, deploys 23 athletes, according to its Youth and Sport Ministry.
The eighth World Junior Wushu Championships will run from December 3 to 11.