Objective To observe the effect of L-shaped endoscopic retractor TAPP on inguinal hernia in seniors. Methods A total of 90 elderly patients with inguinal hernia from March 2020 to March 2021 were selected and randomly divided into an observation group （n=45） and a control group （n=45）. The observation group received L-shaped endoscopic retractor TAPP, and the control group received conventional endoscopic TAPP. The operative effects and postoperative complications between the two groups were compared. Results Operation time, intraoperative blood loss, postoperative anal exhaust time, VAS pain score 2 days after operation, hospital stay, and the incidence of postoperative complications in the observation group were significantly lower than those in the control group （P<0.01）; there was no significant difference in recurrence rate at postoperative 6-12 months between the two groups. Conclusion TAPP with L-shaped endoscopic retractor in the treatment of senile inguinal hernia has the advantages of convenient operation, short operation time, less surgical trauma, quick postoperative recovery, and safety, so it is worthy of clinical application.