In this study, carried out in the underground mines in Serbia, the indicators of occupational safety and health (OSH) were investigated in relation to the parameters of production unit, age, experience and qualification. To identify the main indicators of occupational safety and health in the mining industry, a survey was conducted among the employees. The results of applied survey were analyzed using the ANOVA test to determine whether there were significant differences in the opinions of respondents. The applied test showed existing of these differences and that they are most pronounced in the age and seniority category. The differences of opinion are least pronounced in relation to the production unit of the mine and are reflected in the category of questions relating to the work equipment and training. The clearest differences between respondents were in the age and work experience, where the employees showed statistically significant differences in their opinions about the control of work equipment, competence of their colleagues, work organization and quality of training.