This paper explores the effectiveness of cognitive behavioral therapy (CBT) in the treatment of eating disorders, looking at the findings of the past three years by examining Western and Asian studies. Eating disorders (EDs), as a global health problem, cover a range of serious mental health conditions marked by abnormal eating patterns, unhealthy food-related behaviors, and intense or obsessive obsession with weight and body shape.Eating disorders are a global health problem that covers a range of abnormal eating patterns and unhealthy behaviors related to food. It may also contain strong concerns about weight and body shape. The purpose of this article is to discuss the effectiveness of cognitive behavioral therapy in the treatment of eating disorders. The article first reviews the relevant western and Asian studies and reviews a research result in the past three years. In addition, the research method of this paper is to conduct a comprehensive search on the Web of Science, PubMed and UB libraries and other databases, and the search keywords mainly include "cognitive behavioral therapy", "eating disorder", "anorexia", "bulimia", "bulimia", "effect", "Western" and "Asian". The search time range is 2020 to 2023 to ensure that the latest and most current articles are searched. In addition, the assessment tools used in these studies mainly included clinical impairment Assessment (CIA), Eating disorder examination (EDE), EDE-Q, Depression Anxiety Stress Scale (DASS), Short Symptom List (BSI, Italian version), and Mood and Anxiety Symptom Questionnaire (MASQ). The coverage shows a more comprehensive assessment of clinical impairment, eating disorder symptoms, and anxiety symptoms in the context of the CBT-E intervention. However, there are limitations to the certainty of results in this literature due to differences between studies in design, follow-up period, sample size, and patient diagnosis and age. Future studies should further discuss the effects of treatment in different cultural contexts in order to more accurately understand a potential impact in treatment.