This paper examines the complex relationship between mental disorders and criminal behavior, aiming to understand how specific mental disorders may influence tendencies towards criminal activity. The focus is on three key disorders: schizophrenia, antisocial personality disorder (ASPD), and psychopathy, with additional analysis of mood and anxiety disorders. Through a review of existing research and theoretical frameworks, the paper examines the strengths and limitations of current studies, including both quantitative and qualitative approaches, as well as meta-analyses. The research findings indicate that while there is an association between mental disorders and criminal behavior, this relationship is often complex and influenced by various factors. Theoretical frameworks such as the biopsychosocial model provide valuable insights, but there are also significant limitations in methodology and applicability of findings. Based on the analysis, the paper proposes recommendations for future research, including the need for longitudinal studies, exploration of the effectiveness of preventive and intervention strategies, and consideration of social and cultural factors. These findings have important implications for the judicial and healthcare systems, emphasizing the development of effective preventive and intervention programs that integrate diverse treatment and support approaches.