Clinically, dilated cardiomyopathy can be divided into three periods: 1) acute decompensated phase, with obvious hemodynamic abnormalities and symptoms caused by water and sodium retention, at this time, the treatment should improve hemodynamics, and if the effect of drugs is not good, mechanical treatment such as extracorporeal membrane pulmonary oxygenation or left ventricular assist device is feasible; 2) chronic stable phase, the treatment mainly focuses on maintaining the stability of cardiac function, so that cardiac function gradually improves, including For patients with non-pharmacological indications, CRT implantation can be performed; 3. In patients with advanced dilated heart disease, on the basis of pharmacological treatment, mechanical assist devices are required, and if necessary, heart transplantation can be performed.