Once a child develops cardiomyopathy, it is mostly a congenital cardiomyopathy, that is, there may be genetic factors or other developmental abnormalities, which lead to the dysfunction of the contraction as well as the diastolic function of the heart muscle. In this case, the child’s life expectancy may be lost within 2-5 years. Therefore, once cardiomyopathy occurs in a child, it is necessary to actively improve the contractile as well as diastolic dysfunction of the patient’s heart, which can prolong the patient’s life expectancy. In terms of drug treatment, it is mainly based on cardiotonic, diuretic, and nutritive myocardial drugs, such as digoxin, milrinone, neovasculin, spironolactone, hydrochlorothiazide, etc., and the medication should be taken at regular intervals, so as to improve the prognosis of the patients. If you want a complete cure, you usually need a heart transplant, and our current technology is not yet mature, so most of them still need conservative treatment.