The patient was a 33-year-old man. He had severe upper abdominal pain after a rugby game and he was diagnosed with traumatic pancreatic injury. Since intra-abdominal bleeding became severe, laparotomy was performed for haemostasis. On operation, venous bleeding from the upper edge of the head of the pancreas was found and the haemorrhage was stopped. The whole pancreas had severe inflammation with oedematous tissue spreading into the meso-colon and meso-jejunum. On the same day, the patient was transferred to our hospital for further treatment of acute pancreatitis. On admission, the amylase level in the drainage fluid was high and, thus, we started continuous arterial infusion treatment via the superior mesenteric artery, in addition to subcutaneous administration of octreotide. Enteral nutrition was started on postoperative day 6, oral intake was started on postoperative day 15. The patient recovered successfully and was discharged on postoperative day 30.