What disorders are treated by Cognitive-Behavioural Therapy (CBT) ? Which CBT techniques are most commonly used for treatment? What are the major challenges encountered in the use of CBT? These are the concerns of this research. Some of the mental health facilities in the city of Goma where CBT is applied were targeted. Using the survey method supported by the interview and documentary technique, then accompanied by thematic content analysis, we noted that depressive disorders, post-traumatic stress disorder, substance abuse and addictive disorders, acute stress, generalised anxiety disorder, delusional disorders and social phobia followed by chronic hallucinatory psychosis and PMD are the main psychopathologies dealt with. Cognitive restructuring, modelling, assertiveness techniques and acceptance and commitment therapy are hardly ever used; psychoeducation and relaxation remain the most widely used CBT techniques. The lack of adequate training by CBT therapists, the incompleteness of sessions (some stop after 3 or 4 sessions) by patients, the client’s level of education, the lack of a well-defined institution in the region or in the country as a whole that specialises in CBT training, and patients’ socio-economic difficulties are the main challenges encountered in the use or practice of CBT.