Introduction: Along with the rising life expectancy, there occurs an increased interest in geriatric care and in assessment of life quality in elderly persons. This study sought to examine the effects of physical activity on the quality of life in students of the University of the Third Age (UTA). Another purpose was to determine correlations between physical activity at a young age and the level of health state and physical activity at the time of the research as well as assessing the effects of socio-demographic factors on the quality of life in elderly individuals. Material and methods: The study included 138 UTA students (113 females and 25 males) aged 50 and above from Warminsko-mazurskie region. The questionnaire consisting of two parts was applied as a research tool. The first part included the authors’ own questionnaire with general questions as well as questions regarding physical activity levels at a young age and at the time of the research. The second part was made up of the standardised WHOQOL-BREF questionnaire (shorter version of WHOQOL) which was used to assess the subjects’ quality of life. Results: No significant differences between physical activity levels at a young age and at the time of the research were noted (p < 0.05). Self-evaluation of both life quality and heath state was significantly higher in individuals engaged in vigorous and moderate physical activity (p < 0.05) than in the other group. Conclusions: Physical activity of UTA students determines their quality of life and health state. Socio-demographic factors such as sex, age and a place of living influence the scores regarding the quality of life in WHOQOL-BREF domains.