Despite the development of ways to help patients diagnosed with bulimia nervosa, its treatment continues to be a therapeutic challenge. The first method of choice in the treatment of bulimia nervosa is cognitive-behavioral therapy because of its effectiveness, demonstrated in randomized studies. Nevertheless, a large proportion of patients are not covered by this method, which may be related to the insufficient number of clinicians using it. The aim of this article is to present the current knowledge on cognitive-behavioral therapy of bulimia (CBT-BN): its theoretical basis, development history, description of the method and its empirical status and options for increasing the effectiveness of treatment. The development of CBT-BN has contributed to the emergence of enhanced cognitive-behavioral therapy (CBT-E). The following part of the article describes the theoretical basis of CBT-BN. Next, CBT-E is characterized – its application, stages of therapy as well as the results of tests verifying the theoretical basis and the effectiveness of the therapy are described. The last part of the work concerns the possibilities of increasing the effectiveness of CBT-BN, including integration with other methods of helping, for example, motivational dialogue (“Motivational Interviewing”, MI). In this context, it seems promising to use new forms of cognitive-behavioral therapy, referred to as the third wave of cognitive-behavioral therapy: dialectic behavioral therapy (DBT), integrative cognitive-affective therapy (ICAT), schema therapy (ST).