The 4th International Olympic Internet Discipline Competition in Theoretical Mechanics was held online from March 10th to 11th, 2025. It attracted 68 universities from 10 countries including China, Russia, and Turkmenistan (the host). Among 19 Chinese participating universities was Xi'an Jiaotong University. The competition included individual and team events. Ten students from XJTU's School of Aerospace Engineering won all awards: 1 first prize, 7 second prizes, 2 third prizes in individual events, and second/third prizes in team events. Organized by Vice Dean Liu Yilun ,Yu Wenshanand coached by Zhang Yahong et al., the competition demonstrated students' enterprising spirit.