The main method to eliminate edema in peritoneal dialysis patients is to control the volume load, and the specific measures are as follows: 1. Control water and salt intake: Patients are recommended to adopt a low sodium diet, which can effectively avoid swelling and heart failure and reduce the chance of repeated hospitalization; 2. Increase water and salt excretion: Increase water and sodium excretion by adjusting the dialysis program, and also use diuretic drugs in combination to eliminate edema. By controlling the incoming volume and increasing the outgoing volume, in order to achieve the purpose of reducing the volume load, finally the patient can reach the suitable dry weight, effectively remove the edema, control the blood pressure and improve the patient’s quality of life.