Chronic pulmonary heart disease, referred to as chronic pulmonary heart disease, is a common disease in China. The prevalence rate is higher in northeast, northwest and north China than in the south, and the prevalence rate is higher in rural areas than in cities, and increases with age. The dry and cold climate in winter can easily induce respiratory infections, which can aggravate and worsen pulmonary heart disease. Therefore, it is especially important for patients with pulmonary heart disease to do a good job of prevention to spend the winter safely. First, to prevent upper respiratory tract infection upper respiratory tract infection is the main cause of acute attacks of pulmonary heart disease. Therefore, patients with pulmonary heart disease should strictly prevent upper respiratory tract infections. Usually to strengthen exercise, more outdoor fresh air practice deep breathing, whistling, lip reduction breathing, in order to improve the strength of the respiratory muscle, increase lung capacity, enhance the immunity of the body; pay attention to the cold, to prevent cold air stimulation; with climate change to increase and reduce clothing, so as not to cause colds and aggravate the disease. In addition, winter should also pay attention to the temperature and humidity of the living room, regularly open the windows to keep the air circulation fresh. Secondly, keep the respiratory tract unobstructed Ventilation disorder is the main factor that aggravates pulmonary heart disease. Therefore, we must try to keep the respiratory tract unobstructed. If you cannot cough up phlegm, it will aggravate the obstruction of the respiratory tract; drinking more water, hot steam or nebulized inhalation is good for moistening the respiratory tract and diluting thick phlegm; more activities and conscious coughing are good for phlegm discharge. Of course, the effect is better with the use of phlegm-suppressing drugs such as aminoglutethimide. Third, home oxygen therapy Oxygen can significantly slow down the progression of pulmonary heart disease, reduce pulmonary artery pressure, and reduce the death rate of pulmonary heart disease, which is one of the most reliable methods to extend the survival time of patients with pulmonary heart disease. The principle of oxygen therapy during exacerbation of pulmonary heart disease is, long-term, continuous, low-flow (1~23 l/min) oxygenation. It should generally continue for more than 14 hours per day, with intervals during the day and without interruption during sleep. In recent years, oxygen therapy has been popularized to the family. Fourth, strengthen the diet to regulate the pulmonary heart patients to breathe the energy consumed than normal people, and because of visceral stasis, edema and poor appetite, absorption and poor. Therefore, most patients are malnourished, weight loss, hypoproteinemia, low immunity, easily lead to infection, aggravating the disease, thus forming a vicious circle. Therefore, it is very important to regulate the dietary nutrition of pulmonary heart disease. Patients should be given high-quality protein (eggs, milk, fish, etc.) and a diet rich in vitamins, fiber, easy to digest (such as fruits and vegetables, etc.), do not over-restrict salt, because low salt can aggravate weakness, loss of appetite, and even nausea, vomiting, aggravating malnutrition. However, patients with edema and cardiac insufficiency should control the amount of salt to avoid aggravating the respiratory and cardiac burden. Of course, it is also important for patients with pulmonary heart disease to keep their bowels open. If conditions permit, under the guidance of a physician can take cordyceps, thymus peptide, etc., can improve immunity, shiitake mushrooms, mushrooms also have a role in improving immunity. Fifth, the onset of timely treatment Pulmonary heart disease acute attack or exacerbation of the disease, should be under the guidance of a doctor timely treatment to avoid further aggravation of the disease, and enhance care.