In general, cardiac function class 2 can achieve clinical relief and return to the level of normal people. Cardiac function class 2 refers to heart disease patients with mild limitation of physical activity, no conscious symptoms at rest, and symptoms of heart failure can appear under general activities; the treatment goal of such patients is to prevent and delay the development of heart failure, alleviate the clinical symptoms, and improve the long-term prognosis. It mainly includes lifestyle management, such as healthy lifestyle, smooth emotion; etiologic treatment, such as hypertension, coronary heart disease, diabetes, etc., which should be effectively treated early before organic changes in the heart; at the same time, it is necessary to eliminate the causative factors, especially inhalant infection, which should be actively treated under the guidance of a doctor. It is recommended that patients with cardiac function class 2 should go to the cardiology department of the hospital in time and receive standardized treatment under the guidance of professional doctors.