Peritoneal dialysis, as an important renal replacement therapy for end-stage renal disease patients, can be treated at home. The importance of social support for peritoneal dialysis patients has been widely recognized by researchers. However, due to various reasons, the role of social support has not been fully played. This paper reviews the social support evaluation tools, current situation and influencing factors of peritoneal dialysis patients, summarizes the social support interventions and the existing deficiencies, in order to provide a reference for managers to formulate targeted social support interventions.