Materials and Methods: The research involved 276 male cadets from the 1st to 4th training years. Stress symptoms in the 1st and 2nd training year cadets were assessed before and after their practical training sessions at training grounds, and the 3rd and 4th training year cadets – before and after their internships in police units. Research methods: theoretical analysis of literature sources, psycho-diagnostic methods, statistical methods. Results: It has been found that the most pronounced manifestation of all stress symptoms was observed in the 1st and 2nd training year cadets, especially after completing the tasks of their academic training and service activities. This is due to insufficient psycho-emotional resilience to the stressful factors of academic training and service activities in junior cadets, inadequate skills in utilizing existing means for stress prevention during task performance under martial law, and a low level of stress resilience. Among the cadets studied, the most significant stress level was observed in the junior training years, both before and after their assignments. Conclusions: The research shows that there is an urgent need to develop cadets’ stress resilience to ensure the effectiveness of their academic training and further service activities in practical police units, as well as to develop skills in the use of available means to prevent stressful phenomena in the process of their academic training and service activities.