Objective To investigate the effect of modified B-Lynch suture in treatment of hemorrhage during cesarean section and its nursing. Methods Retrospective analysis was carded in the curative effect of the modified B-Lynch suture among 22 patients who suffered from postpartum hemorrhage during cesarean section. Results Postpartum hemorrhage among 22 patients was under well control and their uteruses were reserved successfully. Conclusions The modified B-Lynch suture is an effective intervention when used to treat intra- operative bleeding during cesarean section and when combined with appropriate nursing care, the patients would make an early recovery.