The study was conducted to determine the impact of physical activity on the personality development and soft skills of cadets at the Military Engineering Academy (Ngo Quyen University). The survey results from 230 cadets show that physical activity not only contributes to physical fitness but also enhances discipline, willpower to overcome difficulties, cooperation, and communication skills. Through statistical analysis using SPSS software, the article demonstrates a positive relationship between the level of participation in physical activities and comprehensive development factors.