Peritoneal dialysis (PD) is a risk factor for inguinal hernia, and herniorrhaphy on PD might be complicated by PD fluid.Although sac resection should contribute to preventing indirect hernia recurrence, the safety on PD has not beendescribed. This case series describes the detailed surgical procedures and long-term outcomes of 16 cases ofinguinal herniorrhaphy on PD. Results are shown as median (range). The age was 67.5 (53-83) years. Beginning atthe 6th case, we omitted interim hemodialysis and performed the Lichtenstein procedure. We performed sac excisionin the 14 patients. No complication related to PD was found. The follow-up period was 41.5 (4-124) months. Norecurrence occurred. They could continue PD for 21.5 (4-103) months after surgery. The total PD duration was 38.5(18-152) months. In conclusion, inguinal herniorrhaphy with sac resection may not compromise safety even forpatients on PD and achieve the expected PD duration without recurrence.