Dilated cardiomyopathy is a primary myocardial disease of undetermined cause. The disease is characterized by enlargement of the left or right ventricle or bilateral ventricles with ventricular hyposystole, with or without congestive heart failure, and ventricular or atrial arrhythmias are common. The disease is progressive and death can occur at any stage of the disease. Dilated cardiomyopathy is a primary myocardial disease with an unknown cause. The following are the nursing measures for dilated cardiomyopathy. 1, basic care (1) rest and activity: heart failure acute exacerbation of cardiomyopathy patients to limit physical activity is very important to slow down the heart rate, reduce the heart load, increase myocardial contractility, improve cardiac function. Those with heart failure symptoms should rest in bed and pay attention to their diet and living. When heart failure is controlled, activity should still be limited to promote the recovery of the enlarged heart. In the remission period (no active shortness of breath), the patient should be encouraged to move around. (2) Diet: Give a light and easy-to-digest diet with low fat, high protein and high vitamin to promote myocardial metabolism and increase the body’s resistance. Each meal should not be too full, so as not to increase the heart load and myocardial oxygen consumption. Low salt diet and limited water intake in heart failure. Patiently explain the importance of diet to the patient in order to obtain the patient’s cooperation. (3) Keep the bowel movement smooth: eat more fresh vegetables and fruits, have small and frequent meals and increase coarse fiber food, add laxatives if necessary, and ask the patient not to strain to defecate to avoid aggravating the symptoms of heart failure. (4) Oxygen inhalation: Give oxygen inhalation and adjust oxygen flow according to the degree of hypoxia. 2. Observe the patient’s vital signs closely and perform cardiac monitoring if necessary. Observe whether there is weakness, jugular venous anger, edema and other manifestations of heart failure; detect the aura of arrhythmia in time to prevent sudden death. Accurately record the in and out volume and monitor the weight regularly. There are many chances of sudden death in this disease, so you should prepare resuscitation materials and drugs, as well as electric defibrillation and other emergency measures. 3, medication care Follow the doctor’s prescription, mainly to control heart failure, while giving drugs to improve myocardial metabolism, observe the efficacy and side effects, and strictly control the infusion rate. Patients with this disease are poorly tolerated by digitalis and should be alert to the occurrence of poisoning. 4.Psychological care Adjust emotions and promote physical and mental rest. Patients with cardiomyopathy are anxious and depressed due to long-term disease and the recurrence of heart failure, and the bad mood makes the sympathetic nerve excited and increases myocardial oxygen consumption.