ObjectiveTo analyze risk factors of gastric paralysis following pancreaticoduodenectomy so as to offer help for prevention and treatment of gastric paralysis. MethodDomestic and international literatures about gastric paralysis following pancreaticoduodenectomy were collected, diagnostic criteria, risk factors, and the latest progress of gastric paralysis were summarized. ResultsGastric paralysis is one of the most common postoperative complications following pancreaticoduodenectomy. It might be caused by many risk factors, such as operation method, gastrointestinal anastomosis, abdominal complications, chronic hyperglycemia, and excess infusion, etc. ConclusionsAlthough definition of gastric paralysis by ISGPS is widely adopted, it fails to distinguish gastric paralysis from impaired gastric function related to other postoperative complications and it might result in an overestimation of its true morbidity. The risk factors of occurrence of gastric paralysis are still in controversy and results of research in different centers are not same, more prospective randomized controlled trials are needed.