Patients with mild depression can be treated without hospitalization. The whole mental state of patients with mild depression is relatively lighter than that of major depression, with slightly depressed mood, slower thinking response, less diet, slightly poorer sleep, lower level of self-evaluation, mainly self-blaming content, and less interest in various things in life. In the treatment process, self-adjustment can be done by means of self-adjustment, such as exercise as a way to adjust mild depression is very beneficial, through exercise can stimulate the brain to secrete endorphin hormones and play an antidepressant role. At the same time, exercise itself is also a relaxation training mode to activate itself, and through the motivation of activation, it further improves the patient’s sense of control and pleasure of the activities that interest him/her, as a way to further adjust the patient’s mood. In addition, good results can be achieved through systematic and standardized psychotherapy. For example, cognitive behavioral therapy can be used to rebuild the patient’s cognitive system and eventually achieve clinical cure.