The article provides the level of functional reserves of students living in mountainous areas. The conducted studies indicate that oxygen deficiency in the inhaled air does not lead to a significant change in the indicators of the functional reserves of students. The value of the endurance coefficient and the index of cardiovascular regulation did not change under hypoxia conditions. At an altitude of 1600 m above sea level, the value of the Robinson index decreased in the group of girls to 78.2 arb. units, boys – 76.0 conventional units. units, and on the plain it was 86.2 and 83.2, respectively. The level of adaptation potential, gradually decreasing, reached a minimum value in mid-mountain conditions - 2.01 for both girls and boys, and on the plain it was 2.12 and 2.11, respectively. The Skibinskaya index at an altitude of 1600 m among female students increased to 23.2, and among male students - 39.3, and at an altitude of 170 m it was 18.2 and 30.9, respectively.