In right heart insufficiency, it is important to strictly restrict fluid intake, limit salt intake, monitor weight, and carefully apply diuretics to avoid hypotension. The more common diseases that cause right heart insufficiency are pulmonary heart disease, congenital heart disease and coronary heart disease. In this case, the primary disease should be strictly treated, the causes of heart failure should be eliminated, infections should be controlled, arrhythmias should be treated, and anemia and electrolyte disturbances should be corrected. In terms of medication, diuretics are usually chosen, which can reduce the preload of the heart, reduce the burden on the right heart and improve the patient’s symptoms. Attention should be paid to avoid electrolyte disturbances, and blood pressure and electrolytes should be monitored to prevent hypotension and electrolyte disturbances. In addition, the application of appropriate cardiotonic drugs can enhance the contractility of the right heart and slow down the ventricular rate, as well as the application of vasoactive drugs, dobutamine, dobutamine, etc.