Mainly Russia, Britain, Canada, Belarus, North Korea and other big countries, but also small countries such as Bermuda, Iceland and Mauritius. According to statistics, there are 104 countries that did not participate in the Universiade. Mainly Russia, Britain, Canada, Belarus, North Korea and other big countries, but also small countries such as Bermuda, Iceland and Mauritius. Chengdu 3 1 World Summer Universiade, referred to as Chengdu Universiade 202 1, was originally scheduled to be held in Chengdu, Sichuan in the summer of 20021,but it was postponed twice due to the COVID-19 epidemic. Finally, after negotiation and confirmation by FISU, China Sports Association and Chengdu Universiade Organizing Committee, it was postponed to July 28th to August 8th, 2023.