Introduction: Depressive disorder is one of the earliest described diseases in the history of medicine and a disease that, according to current estimates, will cause the greatest increase in costs and burden on the health care system compared to all other diseases by the year 2030. In the treatment of depression, drug therapies, various psychotherapeutic techniques, but also other complementary therapies are most commonly used. One of these is neurofeedback, a computerized method based on monitoring the brain's electrical activity (EEG). Materials and methods: Sixty subjects with depressive disorder (moderate or mild) participated in the study and were randomly assigned to one of two groups - the experimental group (E) or the control group (K). The following instruments were used for the assessment: Beck Depression Inventory II (BDI-II), Montegomery-Åsberg Depression Scale, World Health Organization Quality of Life Questionnaire WHOQOL – BREF and Attention Test d2-R. Results: The research results confirm that there is a statistically significant difference between the groups of people with depressive disorder who participated in neurofeedback training and the control group. Conclusion: The application of the neurofeedback method has a positive effect on moderate and mild depressive disorder. The obtained results support the use of neurofeedback training as a complementary method for people with depressive disorders. Moreover, the results indicate that more clear research is needed.