The treatment of muscle weakness in the elderly depends on the cause of muscle weakness: first, acute cerebrovascular disease, such as cerebral infarction, cerebral hemorrhage caused by the weakness of one side of the limb, treatment is mainly given to cerebral infarction or cerebral hemorrhage treatment, while giving the patient limb functional exercise, strengthen muscle massage, to promote functional recovery; second, the elderly muscle weakness if Secondly, if the muscle weakness of the elderly is caused by intracranial infection, the weakness of one limb or all four limbs, the treatment is mainly based on hormone, anti-infection, anti-virus and nerve nutrition; thirdly, if the muscle weakness of the elderly is caused by long-term oral diuretics, such as tachyphylaxis tablets or hydrochlorothiazide tablets, the treatment is mainly intravenous potassium supplementation or oral potassium supplementation. Later, the symptoms can be relieved.