The article presents a study of the impact of physical exercises and team sports games on the development of psychological resilience in children aged 9-11 and adolescents aged 12-14. Psychological resilience is an important factor for the successful development of a personality, helping children and adolescents to cope with difficulties, maintain emotional stability, develop social skills and adapt to new conditions. Two groups of children were selected for the study: the first group included 50 children aged 9-11, and the second group included 50 teenagers aged 12-14. The study was conducted in four stages: baseline assessment, intervention, final assessment, and analysis of results. Assessment methods included standardized questionnaires (Emotional Stability Scale (ESS), Self-Confidence Scale (SCS), Social Skills Scale (SSS), and Adaptive Capacity Scale (ACS)), interviews with children, and observation. The baseline assessment allowed us to determine the initial level of psychological resilience of each child. The intervention lasted for 8 weeks and included daily exercise sessions lasting 30 minutes and twice-weekly training and competitions in team sports (football, basketball, and volleyball). At the end of the intervention, a final assessment was conducted to determine changes in psychological resilience. The results of the study showed a significant improvement in all criteria of psychological resilience in both groups. In children aged 9-11, emotional stability increased by 20%, self-confidence by 20%, social skills by 20%, and adaptability by 20%. In adolescents aged 12-14, the improvements were even more pronounced: emotional stability increased by 23%, self-confidence by 22%, social skills by 22%, and adaptability by 23%. The analysis of the results confirmed that physical exercises and team sports games contribute to a significant improvement in psychological resilience in children and adolescents. In particular, children became more emotionally stable, more confident, developed their social skills and increased their ability to adapt. These changes are important for their further development and successful socialization.