In terms of pancreatic fistula by trauma which was lately operated after 5 days, the effects of pancreatic juice, injuried pancreatic tissue was friable, decayed the anastomosis had the high risk of leaking if we made pancreatico-jejunostomy so we actively closed pancreatic duct (exocrine pancreas excluded) this patients suffered postoperative pancreatic fistula and healed after a month, no complications occurred, and this patient had no complaints about the symptoms of exocrine pancreatic deficiency.