The proposed article briefly discloses the tools and the state of discipline of older adolescents in the process of practicing martial arts. The methods of educational work with students in the process of physical culture and martial arts are shown. The objective content of the experimental work, criteria, indicators and levels of education of the problem under study have been determined. The described criteria (cognitive, emotional-motivational, voluntary impulse, behavioral) and their indicators. According to the refined criteria and indicators of the discipline level of older adolescents, the levels (productive, selective, passive) were determined in the process of martial arts training. It was found that: the reasons for the unsatisfactory levels of discipline education of schoolchildren are the failure to use by teachers, coaches in the process of physical education and martial arts techniques aimed at fostering discipline in students; physical culture teachers often ignoring educational tasks aimed at the formation of moral and volitional qualities, do not provide older adolescents with proper knowledge of discipline; a significant number of modern schoolchildren do not want to attend physical education lessons, martial arts training; there is practically no real interaction of teachers of physical education with parents and other meaning. The developed and refined method of educating the discipline of older adolescents in the process of martial arts made it possible to determine the levels of education of the studied category at the ascertainment stage and so on. Thanks to the data obtained, it was found that the studied schoolchildren have unsatisfactory levels of discipline in the process of practicing martial arts. The materials of the theoretical analysis of the problem of educating the discipline of older adolescents in the process of martial arts show that there is no consensus of scientists and practitioners on the education of discipline and so on.