The incidence of overweight and obesity is increasing year by year, significantly affecting individual health and socio-economic development, and has become an important public health issue. The occurrence of overweight and obesity is not only related to genetic factors, but also to individual behavioral patterns, psychological cognition, and social factors. Psychological therapy reduces the problem of weight rebound and enhances and consolidates weight loss by correcting irrational cognition and teaching effective strategies to deal with negative emotions. Therefore, this article will review the current application status of psychotherapy in overweight and obesity populations in recent years, summarize and analyze the intervention points and application effects of commonly used psychotherapy methods, in order to provide theoretical basis for non drug and non surgical intervention treatment of overweight and obesity, and ultimately develop accurate psychotherapy intervention strategies for clinical practice.