Objective To investigate the risk factors and preventions of functional delayed gastric emptying (FDGE) after pylorus-preserving pancreatoduodenectomy (PPPD). Methods The clinical data of 41 patients after undergoing PPPD between 2003 and 2009 in this hospital were analyzed retrospectively.Results In all 41 cases, postoperative complications developed in 13 patients (31.7%), in which 7 patients developed FDGE (17.1%). The complications excluding FDGE (P=0.010) and diabetes (P=0.024) had remarkable relations with the FDGE in the univariate analysis; Compared with the non-FDGE patients, the albumin was declined obviously (P=0.020) while the serum direct bilirubin increased significantly (P=0.036) in the FDGE patients, while the development of FDGE had relation only with the albumin (P=0.039) and the complication of diabete (P=0.047) by the binary logistic regression analysis. Conclusion In the patients undergoing PPPD, preoperative control of the blood glucose, preoperative correction of hypoproteinemia and hyperbilirubinemia, and centralizing PPPD in high-volume have possibly positive significance for the prevention of FDGE.