This thesis concerns epistemic virtues of psychotherapist as an epistemic agent in psychotherapeutic process. The basic aim of the thesis is to show, the difference between objectivistic and hermeneutical approach in psychotherapy, in the realm of epistemology. According to objectivistic approach the psychotherapist sets the goal for the psychotherapy in the terms of objective truth while in hermeneutical approach the psychotherapist sets an epistemic goal which is a patient`s functional belief. The differences between these two approaches concerns epistemic differences in their conceptualisation of the patient`s situation and their use of expert knowledge in therapeutic interaction. In objectivistic approach the knowledge that is necessary for the psychotherapist is the knowledge of psychopathology and some psychotherapeutic theories. In the hermeneutical approach, the therapist is an expert for the constructive process of reaching the patient`s functional beliefs. In both approaches there is a need for efficient psychotherapy. The thesis is focused on the epistemic virtues that are necessary and which determinate the development of efficient hermeneutical psychotherapy practice. Testimonial justice is one of the basic epistemic virtues of communicational act of psychotherapy. The frame for elaboration of these ideas is the virtue epistemology because it put the epistemic agent in the center of epistemic evaluation and revealed the possibilities for the epistemic evaluation of communicational acts such as psychotherapy. The second aim of the thesis, also dependent on the link between epistemology and psychotherapy, is to show the epistemic value of understanding and the advantages of hermeneutical methodology in psychotherapy. The thesis shows that epistemically irresponsible use of DSM classification and psychiatric explanations in the frame of objectivistic approach, can be a generator of epistemic injustice. The epistemic injustice is incompatible with a very basic values of psychotherapy and it`s aims, so the epistemically irresponsible use of DSM classification and psychiatric explanations is incompatible with psychotherapy.