Aim: is to study the level and dynamics of the development of physical and psychological qualities of the cadets in the process of engagement in pentathlon classes. Materials and methods: The research involved 18-23 years old cadets (men) of the first-fourth years of training. The level of the cadets' physical qualities was assessed by their results in the 100 m run, pull-ups, 3 km run, overcoming of the obstacle course. The level of the cadets' psychological qualities was studied using the following methods: well-being-activity-mood methodol¬ogy; methods of self-assessment of psycho-emotional state; methods of determining the level of the development of volitional self-regulation of the individual. Results: The positive influence of pentathlon classes on the development of physical and psychological qualities in the cadets and the improvement of their psycho-emotional state was established. The greatest effect was found in exercises aimed at de-veloping endurance and agility as well as coordination skills. Conclusions: It was found that pentathlon classes are more effective than the traditional physical training classes; they affect the level of the development of all cadets' physical qualities. The high level of physical and psychological qualities of the cadets will help to improve their future professional activities.