Objective To explore the risk factors and treatment associated with postoperative hemorrhage after pancreaticoduodenectomy. Methods The clinical data of 78 patients undergoing pancreatieoduodeneetomy from May 2009 to October 2011 were retrospectively analyzed in Xinhua Hospital, Shanghai Jiao Tong University School of Medicine. Results The incidence of postoperative hemorrhage was 10.3％ （8/78）. Among these eight patients, intra-abdominal hemorrhage occurred in two cases （one case of early and delayed hemorrhage respectively）, and gastrointestinal hemorrhage occurred in 6 cases （one and five cases of early and delayed hemorrhage respectively）. Univarlate analysis showed that operative blood loss, postoperative celiac infection, pancreatic fistula, and pancreaticogastrostomy were significantly associated with postoperative hemorrhage. Multivariate analysis identified for vailables as independent factors associated with postoperative hemorrhage, namely, pancreaticogastrostomy, postoperative celiac infection, and pancreatic fistula. Conclusions Skillful operation, prevention of pancreatic fistula, and control celiac infection are important for reducing postoperative hemorrhage. Proper treatments should be used according to the site, onset, and severity of hemorrhage. To prevent its occurrence is the key of treatment.