According to popular opinions therapeutic relationship in cognitive-behavioral therapy is not equally important as techniques. It is often assumed that cognitive therapists view relationship with a patient only as a prerequisite to change, that this relationship doesn't lead to change by itself and that they overlook important emotions between patient and therapist. Contrary to these opinions some streams of CBT to a large extent make use of therapeutic relationship. In this paper the Schema Therapy of Jeffrey Young (Young's Schema Therapy – YST) in work with borderline personality disorder is presented. Young assumes, that borderline personality disorder developes, when a person with a reactive temperament in maladaptive ways deals with emotions and unfulfilled needs. The aim of therapy is showing patients another patterns of thinking, behaving and treating their own needs. Therapist uses a method of a limited parenting, trying to engage therapeutic relationship in a process of change. YST therapist should be flexible and responsive to emotional shifts in a patient during the session and work differently with different schema modes. Limits setting also has a curing function. During supervision schemas of a therapist are discussed and their influence on the therapy process.