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. The purpose of this article is to discuss the effectiveness of cognitive behavioral therapy in the treatment of eating disorders. The article reviews the relevant Western and Asian studies and reviews a research result in the past three years. The result 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 to more accurately understand the potential impact of treatment.