Introduction: Different factors can affect the quality of life. The aim of this paper is to establish influence of age on quality of life of senior citizens. Methods: The survey was conducted in 2018 using the WHOQOL-BREF questionnaire. Thirty examinees participated in the study. Results: All respondents confirmed the presence of at least one morbidity. Younger senior citizens are more satisfied with their health compared to responders over 75 years old (p = 0.001). Younger senior citizens (up to 74 years), have a higher level of life quality compared to subjects aged 75 and over (p = 0.000). Comparing individually by area, younger senior citizens (up to 74 years) have a higher level of quality of life, compared to subjects aged 75 and over in the domain of physical health (p = 0,000), mental state (p = 0.001) and the environment (p = 0.020), while there was no statistically significant difference in social interaction estimation (p = 0.3844). Senior citizens walking without the help of walking aids are more satisfied with the quality of life than those using walking aids (p = 0,009). Younger senior citizens are average to walk more than seniors over 75 years (p = 0,000). Respondents with higher educational status are more satisfied with the quality of life than those with a lower educational status (p = 0,004). Discussion: A higher age of life negatively affects the quality of life and health. Physiotherapy plays a major role in improving or maintaining the quality of life and health of older persons. It is necessary to develop strategies to improve the quality of life of senior citizens.