The purpose of this work was to study the peculiarities and interrelations of achievement motivation, locus of health control (multidimensional and visual analogue scales) and academic advancement of senior schoolchildren (years IX – XII). 228 senior schoolchildren participated in the study. The study involved two methodologies. The first one, meant for the research of learning motivation of schoolchildren, was used A. Mehrabian’s achievement motivation test-enquiry, modified by M. Sh. Magomed – Eminov. The second one – K. Wallston’s (1978) health locus of control (multidimensional and visual analogue scales). The research results data confirmed the hypothesis that achievement motivation of senior girls is different from that of senior boys. It was established that the ratios of motivation of boys were higher than those of girls of the same age. It is confirmed by the statistically relevant relation (t(226)=2,004, p = 0,04). The analysis of research data showed that: achievement motivation of senior schoolchildren decreases with the age; senior schoolchildren’s belief that condition of health depends on contingencies or external influences decreases with the age; senior boys evaluate their health better than girls of the same age; advancement of senior schoolchildren increases with the age. Second hypothesis of probability of relation among achievement motivation, health control ratios and academic advancement in senior grades was not confirmed.