Positive Psychotherapy (PPT after Peseschkian) provides a humanistic and resource-oriented approach to addressing personality disorders. This therapeutic model emphasizes the dynamic interplay of primary and secondary capacities, the Balance Model, and the influence of sociocultural factors on personality development. Rather than focusing solely on pathology, PPT highlights individuals’ latent strengths and their capacity for transformation. The therapeutic process integrates psychodynamic tools with PPT-specific interventions such as the five-step strategy (Observation-Distancing, Inventory, Situational Encouragement, Verbalization, and Broadening of Goals) to foster self-awareness, impulse control, emotional communication, and adaptive coping strategies. The role of transference and countertransference is also examined as a core element in therapy, providing deeper insight into relational patterns. By reinforcing self-esteem and relational skills, PPT helps individuals with personality disorders achieve greater psychological flexibility and social integration. This paper explores the application of PPT in treating personality disorders, illustrating its effectiveness in fostering sustainable personality development and emotional well-being.