The purpose of the work was to study the structure and content of tests of physical training of the armed forces of foreign countries and further development of the test of physical fitness of servicemen, testing its effectiveness in the system of military-professional activities. To solve the goal, the following tasks were formed: to analyze the main components of the guiding documents on the organization and verification of physical fitness of servicemen, their tasks and areas of implementation; to determine the basic principles of the organization of testing and assessment of physical fitness in the Armed Forces of Ukraine and the Armed Forces of foreign countries. Materials and methods. The main material was scientific articles, archival data, guiding documents on the organization, structure and content of the test of physical fitness of servicemen in the armed forces of leading NATO countries. Achieving the goal was ensured by using a set of adequate general scientific research methods. In particular, the story was chosen because it allows a more diverse description of a relatively wide range of issues. However, various sources of information were used to minimize subjective views and judgments, but primarily literary and documentary. At the same time, we used a critical approach to the choice of available sources of information. The formation of a circle of literature sources was carried out after their search in the database Scopus, SPORT Discus, Web of Science. They also took into account the temporal aspect of the appearance of information on certain topics, especially foreign leading scholars. Similarly, there was a direct study of printed literature sources, including information from journal articles on lists of used literature. In total, more than 50 sources of information were analyzed, followed by a final review and 22 sources of literature, including 7 foreign authors, the material of which was processed using general scientific methods, including analysis and synthesis, systematization, generalization. Results and discussion. It is determined that the reform of the Armed Forces of Ukraine in the absence of sufficient funding, clear guidelines and objectives, structure and functions negatively affects the state of military-professional activities of all types and kinds of troops, including the state of physical training. We have singled out the principles according to which the content of testing and assessing the physical fitness of servicemen at different stages of military service and its different conditions is formed. The main direction of all principles is the interdependence of physical fitness of servicemen and the effectiveness of combat training tasks. Based on the results of our literature analysis of the system of testing and assessment of physical training of the armed forces of leading countries, we concluded that in the system of testing physical fitness a certain gradation was carried out by type of armed forces and military specialties. Conclusion. It is proved that the opinion of the majority of domestic and foreign experts on the formation of tests of physical fitness in the Armed Forces of Ukraine does not differ significantly from some provisions of the guidance documents on physical training and testing complexes of foreign armed forces