Mitochondrial cardiomyopathy is a heart disease caused by mitochondrial dysfunction, resulting in myocardial ischemia. The treatment plan is mainly to provide energy to cardiomyocytes to improve myocardial ischemia caused by mitochondrial dysfunction. The methods to provide energy to myocardial cells include: 1. continuous low-flow oxygen inhalation to promote the entry of oxygen into the mitochondria of myocardial cells. 2. giving symptomatic treatment such as rehydration and supplementation can also help myocardial cells to replenish nutrients and promote energy provision. 3. giving anti-myocardial ischemic treatment, such as anti-platelet aggregation drugs (aspirin enteric tablets), can improve the prognosis. 4. some proprietary Chinese medicines can also improve the prognosis, such as coronary heart Danshin drops and other drugs.