Objectives: The aim of this study was to examine the impact of horse therapy on the quality of life of psychiatric patients. Study structure: A prospective survey was conducted, from May to August 2021. Subjects and methods: The study involved 107 respondents, of whom 20 were men and 87 women. Subjects are psychiatric patients who participate in horse therapy in therapeutic riding associations. Subjects completed the WHOQOL - 100 questionnaire before and after 12 weeks of horse therapy and a questionnaire compiled by the author for the study. Results: After treatment, subjects rated a significant improvement in general quality of life (One-way analysis of variance ANOVA test, P = 0.0001) and a significant improvement in quality of life associated with the aspect of pain and discomfort (One-way analysis of variance ANOVA test, P = 0.0001). Subjects also perceived significant improvements (One-way analysis of ANOVA test variance, P <0.01) of their quality of life in 9 other aspects after therapy implementation. 88 (82.3%) respondents strongly or partially agree with the statement that I believe that equine therapy has contributed to my quality of life. Conclusion: Respondents, before therapy, showed the weakest results in the quality of life in the domain of physical health and independence, and the highest results were recorded in the domain of social relations. Subjects self-perceived significant improvements in 9 aspects after conclusion of the therapy. The results show that equine - assisted therapy could be useful in reducing the symptoms of psychiatric illness and improving quality of life. The structure of the study did not include a control group and was conducted on a small number of subjects, so it is difficult to draw conclusions about the effectiveness of the intervention.